{"id":2883,"date":"2026-09-25T10:57:28","date_gmt":"2026-09-25T10:57:28","guid":{"rendered":"https:\/\/ecocretefiber.com\/?p=2883"},"modified":"2026-09-25T10:57:28","modified_gmt":"2026-09-25T10:57:28","slug":"polipropilen-elyafla-modifiye-edilmis-toprak-donma-cozulme","status":"publish","type":"post","link":"https:\/\/ecocretefiber.com\/tr\/polipropilen-elyafla-modifiye-edilmis-toprak-donma-cozulme\/","title":{"rendered":"Donma-\u00c7\u00f6z\u00fclme D\u00f6ng\u00fclerine Tabi Tutulmu\u015f Polipropilen Elyafla G\u00fc\u00e7lendirilmi\u015f Toprak: Mukavemet Testlerinin Alt Zemin Tasar\u0131m\u0131 \u0130\u00e7in Anlam\u0131"},"content":{"rendered":"

Bir yol alt zemini, k\u0131\u015f \u00f6ncesinde sa\u011flam g\u00f6r\u00fcnebilir, ancak ilkbaharda eriyen kar sular\u0131n\u0131n g\u00f6zeneklerine geri dolmas\u0131yla ta\u015f\u0131ma g\u00fcc\u00fcn\u00fc kaybedebilir. Bir m\u00fcteahhit i\u00e7in bu de\u011fi\u015fiklik, topra\u011f\u0131n kuru bir g\u00fcnde nas\u0131l davrand\u0131\u011f\u0131ndan daha \u00f6nemlidir. Polipropilen (PP) elyaflar<\/a> S\u0131k\u0131\u015ft\u0131r\u0131lm\u0131\u015f topra\u011f\u0131n donma ve \u00e7\u00f6z\u00fclme s\u00fcre\u00e7leri boyunca mukavemetini korumas\u0131na yard\u0131mc\u0131 olabilir; ancak do\u011fru lif uzunlu\u011fu ve dozaj\u0131, topra\u011fa, suya, s\u0131k\u0131\u015ft\u0131rma derecesine ve hedeflenen mukavemete ba\u011fl\u0131d\u0131r.<\/p>\n\n\n\n

Shandong Jianbang Chemical Fiber Co., Ltd. olarak, \u00e7imento bazl\u0131 ve di\u011fer m\u00fchendislik malzemeleri i\u00e7in Ecocretefiber\u2122 lifleri tedarik ediyoruz. Bir proje ekibi toprak i\u00e7in PP lifini de\u011ferlendirirken, biz \u00f6ncelikle \u015fantiye topra\u011f\u0131n\u0131 inceliyor ve kontroll\u00fc bir deneme yap\u0131yoruz. Lifle modifiye edilmi\u015f yumu\u015fak topraklara ili\u015fkin yay\u0131nlanm\u0131\u015f bir laboratuvar kar\u015f\u0131la\u015ft\u0131rmas\u0131, bu konuda faydal\u0131 bir \u00f6rnek te\u015fkil etmektedir. Bu \u00e7al\u0131\u015fma ayn\u0131 zamanda, umut verici bir 0,3% sonucunun neden evrensel bir re\u00e7ete haline gelmek yerine testlere rehberlik etmesi gerekti\u011fini de g\u00f6stermektedir.<\/p>\n\n\n\n

\"Donma<\/figure>\n\n\n\n

Donma-\u00e7\u00f6z\u00fclme d\u00f6ng\u00fcs\u00fc neden yol alt zemini zay\u0131flat\u0131r?<\/strong><\/strong><\/h2>\n\n\n\n

Don olu\u015fumu i\u00e7in dona kar\u015f\u0131 hassas bir toprak, donma ko\u015fullar\u0131 ve su gereklidir. Bu Federal Karayollar\u0131 \u0130daresi\u2019nin jeoteknik k\u0131lavuzu<\/u><\/a> ilkbaharda eriyen kar\u0131n yol a\u00e7t\u0131\u011f\u0131 zay\u0131flama ve k\u0131\u015f\u0131n topra\u011f\u0131n kabarmas\u0131n\u0131 ayr\u0131 sorunlar olarak tan\u0131mlar. Su, donma b\u00f6lgesine do\u011fru ilerleyerek buz mercekleri olu\u015fturabilir. Bu buz eridi\u011finde toprak \u0131slak hale gelebilir ve y\u00fckleri ta\u015f\u0131ma kapasitesi azalabilir.<\/p>\n\n\n\n

Bir elyaf, toprak iskeletinin bir k\u0131sm\u0131n\u0131n deformasyona kar\u015f\u0131 diren\u00e7 g\u00f6sterme \u015feklini de\u011fi\u015ftirir. Rastgele da\u011f\u0131lm\u0131\u015f lifler, par\u00e7ac\u0131klar\u0131n ayr\u0131lma e\u011filiminde oldu\u011fu yerel b\u00f6lgeleri kesebilir. Toprak par\u00e7ac\u0131klar\u0131 lif y\u00fczeyine tutunur ve topra\u011f\u0131n kendisinin \u00e7ekme direnci s\u0131n\u0131rl\u0131 oldu\u011funda lif gerilimi ta\u015f\u0131yabilir. Bu, takviyenin pratik bir a\u00e7\u0131klamas\u0131d\u0131r, ancak \u00f6l\u00e7e\u011fi lif aray\u00fcz\u00fcne, y\u00f6nelimine, kar\u0131\u015ft\u0131r\u0131lmas\u0131na ve s\u0131n\u0131rland\u0131r\u0131lmas\u0131na ba\u011fl\u0131d\u0131r.<\/p>\n\n\n\n

Mukavemet koruma, donma kaynakl\u0131 kabarma kontrol\u00fcyle ayn\u0131 \u015fey de\u011fildir.<\/strong> \u00c7\u00f6z\u00fclme sonras\u0131 yap\u0131lan bir s\u0131k\u0131\u015ft\u0131rma testi, g\u00fc\u00e7lendirilmi\u015f bir numunenin h\u00e2l\u00e2 y\u00fck ta\u015f\u0131yabildi\u011fini g\u00f6sterebilir. Ancak bu test tek ba\u015f\u0131na dikey kabarma, su g\u00f6\u00e7\u00fc, ge\u00e7irgenlik veya kaplaman\u0131n uzun vadeli hareketini \u00f6l\u00e7mez. So\u011fuk b\u00f6lgelerdeki kaplamalar i\u00e7in yine de uygun drenaj, e\u011fimlendirme, donma derinli\u011fi tasar\u0131m\u0131 ve uygun bir yap\u0131sal kesit gereklidir. FHWA k\u0131lavuzunda, su mevcudiyetinin kabarma \u00fczerindeki etkisi de dahil olmak \u00fczere bu daha geni\u015f kapsaml\u0131 alt zemin \u00f6nlemleri a\u00e7\u0131klanmaktad\u0131r. FHWA\u2019n\u0131n don ve su konusundaki a\u00e7\u0131klamalar\u0131na bak\u0131n\u0131z<\/u><\/a>.<\/p>\n\n\n\n

Toprak ve Lif Deneyi Asl\u0131nda Neleri Test Etti?<\/strong><\/strong><\/h2>\n\n\n\n

Li Junfa taraf\u0131ndan 2020 y\u0131l\u0131nda yap\u0131lan bir ara\u015ft\u0131rma, Wuhan Teknoloji \u00dcniversitesi Dergisi (Ula\u015f\u0131m Bilimi ve M\u00fchendisli\u011fi)<\/em> Songliao Ovas\u0131\u2019n\u0131n do\u011fusunda 3,5 m derinlikten al\u0131nan yumu\u015fak bir toprak kullan\u0131ld\u0131. Bu topra\u011f\u0131n bildirilen s\u0131v\u0131 s\u0131n\u0131r\u0131 42,8%, plastik s\u0131n\u0131r\u0131 28,2%, maksimum kuru yo\u011funlu\u011fu 1,768 g\/cm\u00b3 ve optimum su i\u00e7eri\u011fi 18,6% idi. Test ekibi, silindirik numuneleri 98% hedefine g\u00f6re s\u0131k\u0131\u015ft\u0131rm\u0131\u015f ve her test grubunda alt\u0131 numune kullanm\u0131\u015ft\u0131r.<\/p>\n\n\n\n

Ara\u015ft\u0131rmac\u0131lar, nominal de\u011ferleri kar\u015f\u0131la\u015ft\u0131rd\u0131lar lif uzunluklar\u0131<\/a> 6, 9 ve 12 mm \u00e7ap\u0131nda ve 0,1%, 0,2%, 0,3%, 0,4% ve 0,5% i\u00e7eriklerinde. Bu y\u00fczdeler, lif k\u00fctlesinin kuru toprak k\u00fctlesine b\u00f6l\u00fcnmesiyle elde edilir.<\/strong>\u00a0\u00d6rne\u011fin, 0,3%, 1.000 kg kuru toprak ba\u015f\u0131na 3 kg lif anlam\u0131na gelir. Bu, 0,3% \u0131slak toprak anlam\u0131na gelmez ve kg\/m\u00b3 cinsinden kesin bir dozaj de\u011feri de de\u011fildir.<\/p>\n\n\n\n

Her donma-\u00e7\u00f6z\u00fclme d\u00f6ng\u00fcs\u00fcnde numune 12 saat boyunca -15 \u00b0C\u2019de, ard\u0131ndan 12 saat boyunca 20 \u00b0C\u2019de tutuldu. Gruplara 0, 5, 10, 15 veya 20 d\u00f6ng\u00fc uyguland\u0131. Ara\u015ft\u0131rmac\u0131lar, 50, 100 ve 200 kPa s\u0131n\u0131rlay\u0131c\u0131 bas\u0131n\u00e7lar alt\u0131nda, konsolide edilmemi\u015f ve drenajs\u0131z \u00fc\u00e7 eksenli s\u0131k\u0131\u015ft\u0131rma testi ile kayma davran\u0131\u015f\u0131n\u0131 \u00f6l\u00e7t\u00fcler. Ayr\u0131ca s\u0131n\u0131rs\u0131z s\u0131k\u0131\u015ft\u0131rma testleri de yapt\u0131lar. Numune \u00e7ap\u0131 39,1 mm, y\u00fcksekli\u011fi ise 80 mm idi.<\/p>\n\n\n\n

Deneme de\u011fi\u015fkeni<\/strong><\/td>Deneyde kullan\u0131lan de\u011ferler<\/strong><\/td>Neden \u00f6nemli?<\/strong><\/td><\/tr>
PP elyaf i\u00e7eri\u011fi<\/td>0,1% ila 0,5% kuru toprak k\u00fctlesi<\/td>Donat\u0131m miktar\u0131n\u0131 ve yetersiz da\u011f\u0131l\u0131m riskini de\u011fi\u015ftirir<\/td><\/tr>
Lif kesim uzunlu\u011fu<\/td>6, 9 ve 12 mm<\/td>De\u011fi\u015fiklikler, sabitleme imk\u00e2nlar\u0131n\u0131 ve homojen kar\u0131\u015ft\u0131rman\u0131n kolayl\u0131\u011f\u0131n\u0131 etkiler<\/td><\/tr>
Donma-\u00e7\u00f6z\u00fclme etkisine maruz kalma<\/td>0, 5, 10, 15 ve 20 d\u00f6ng\u00fc<\/td>Bu tek termal program kapsam\u0131nda test edilen mukavemetin nas\u0131l de\u011fi\u015fti\u011fini g\u00f6sterir<\/td><\/tr>
Mukavemet \u00f6l\u00e7\u00fcm\u00fc<\/td>UU \u00fc\u00e7 eksenli kayma ve s\u0131n\u0131rlanmam\u0131\u015f s\u0131k\u0131\u015ft\u0131rma<\/td>\u0130lgili ancak birbirinden farkl\u0131 iki g\u00fc\u00e7 sorusuna yan\u0131t verir<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

S\u00f6z konusu deneyde kullan\u0131lan numuneler ve elyaf kaliteleri, deneyin sonu\u00e7lar\u0131n\u0131 belirlemektedir. Bu \u00e7al\u0131\u015fma, t\u00fcm toprak t\u00fcrleri veya mevcut her t\u00fcrl\u00fc PP elyaf\u0131 i\u00e7in evrensel bir teknik \u015fartname belirlememi\u015ftir. Ayr\u0131ca, \u00e7al\u0131\u015fmada belirtilen elyaf teknik \u015fartnamesi, bir Ecocretefiber\u2122 \u00fcr\u00fcn veri sayfas\u0131n\u0131n yerine ge\u00e7memelidir.<\/p>\n\n\n\n

\"Laboratuvar<\/figure>\n\n\n\n

\u00d6rnekler Donup \u00c7\u00f6zd\u00fck\u00e7e Neler Oldu?<\/strong><\/strong><\/h2>\n\n\n\n

Belirli bir elyaf i\u00e7eri\u011fi ve kesim uzunlu\u011funda, bildirilen kesme ve bas\u0131n\u00e7 dayan\u0131mlar\u0131, d\u00f6ng\u00fc say\u0131s\u0131 artt\u0131k\u00e7a genel olarak d\u00fc\u015f\u00fc\u015f g\u00f6sterdi. En b\u00fcy\u00fck de\u011fi\u015fiklikler, d\u00f6ng\u00fc dizisinin ba\u015flar\u0131nda meydana geldi. Ara\u015ft\u0131rmac\u0131lar, yapt\u0131klar\u0131 deney d\u00fczenlemesinde yakla\u015f\u0131k 15 d\u00f6ng\u00fcden sonra daha d\u00fcz bir tepki g\u00f6zlemlediler.<\/p>\n\n\n\n

Ayr\u0131nt\u0131l\u0131 sonu\u00e7lar ve sonu\u00e7 b\u00f6l\u00fcm\u00fcnde, \u015funun belirtildi\u011fi belirtilmektedir: elyafla g\u00fc\u00e7lendirilmi\u015f toprak<\/a> ...idi 10,71 TP3T, 15 d\u00f6ng\u00fcden sonra daha d\u00fc\u015f\u00fck<\/strong>\u00a0bisiklet s\u00fcrmeden \u00f6ncekine k\u0131yasla. 20 d\u00f6ng\u00fcde, ortalama azalma 12,11 TP3T olarak \u00f6l\u00e7\u00fcld\u00fc. S\u0131n\u0131rs\u0131z bas\u0131n\u00e7 dayan\u0131m\u0131 i\u00e7in, ayr\u0131nt\u0131l\u0131 sonu\u00e7lar ortalama azalmalar\u0131n 15 d\u00f6ng\u00fcden sonra 34,51 TP3T<\/strong>\u00a0ve 20 d\u00f6ng\u00fcden sonra 38.0%<\/strong>. Dolay\u0131s\u0131yla, bu deneyde s\u0131k\u0131\u015ft\u0131rma, kaymaya k\u0131yasla \u00e7ok daha y\u00fcksek bir y\u00fczde kay\u0131p sergilemi\u015ftir.<\/p>\n\n\n\n

Bu y\u00fczdeler, s\u0131f\u0131r d\u00f6ng\u00fcdeki kar\u015f\u0131l\u0131k gelen elyaf takviyeli numunelere g\u00f6re meydana gelen de\u011fi\u015fimi g\u00f6stermektedir. Bunlar, takviyesiz kontrol topra\u011f\u0131na k\u0131yasla sa\u011flanan fayday\u0131 nicel olarak ifade etmemektedir. Bu ayr\u0131m, bir ihale veya tasar\u0131m raporunda \u201cBu \u00fcr\u00fcn, i\u015flenmemi\u015f topra\u011fa k\u0131yasla ne kadar daha iyidir?\u201d sorusu soruldu\u011funda \u00f6nem kazan\u0131r. Proje topra\u011f\u0131 i\u00e7in bu soruyu yan\u0131tlayabilmek amac\u0131yla, yan yana bir i\u015flenmemi\u015f kontrol numunesi gereklidir.<\/p>\n\n\n\n

Makalenin \u00f6zeti ile ayr\u0131nt\u0131l\u0131 metni aras\u0131nda 15 d\u00f6ng\u00fc s\u0131k\u0131\u015ft\u0131rma mukavemeti y\u00fczdesi konusunda bir farkl\u0131l\u0131k bulunmaktad\u0131r. Her ikisinde de 34,5% de\u011feri belirtilen ayr\u0131nt\u0131l\u0131 sonu\u00e7lar ve sonu\u00e7 b\u00f6l\u00fcm\u00fcn\u00fc esas al\u0131yoruz ve resmi bir \u015fartnamede bu rakam\u0131 al\u0131nt\u0131lamadan \u00f6nce orijinal deney kay\u0131tlar\u0131n\u0131n kontrol edilmesini tavsiye ediyoruz. Bu fark, ana e\u011filimi de\u011fi\u015ftirmemektedir: donma-\u00e7\u00f6z\u00fclme d\u00f6ng\u00fcs\u00fc, test edilen lifle modifiye edilmi\u015f topra\u011f\u0131 yine de zay\u0131flatm\u0131\u015ft\u0131r.<\/p>\n\n\n\n

15 laboratuvar d\u00f6ng\u00fcs\u00fcn\u00fcn ard\u0131ndan ortaya \u00e7\u0131kan istikrarl\u0131 bir e\u011filim, 15 d\u00f6ng\u00fcn\u00fcn her t\u00fcrl\u00fc iklim ko\u015fulunu veya tasar\u0131m \u00f6mr\u00fcn\u00fc temsil etti\u011finin kan\u0131t\u0131 de\u011fildir. Saha s\u0131cakl\u0131klar\u0131, nem kayna\u011f\u0131, donma h\u0131z\u0131 ve trafik yo\u011funlu\u011fu, bu kontroll\u00fc maruz kalma ko\u015fullar\u0131ndan farkl\u0131l\u0131k g\u00f6sterir. Uygun laboratuvar ko\u015fulland\u0131rma ve kabul e\u015fi\u011fi, projenin jeoteknik test plan\u0131nda belirtilmelidir.<\/p>\n\n\n\n

\"15<\/figure>\n\n\n\n

Neden En \u0130yi Sonu\u00e7 Veren Dozaj Y\u00fczde 0,3 Oldu?<\/strong><\/strong><\/h2>\n\n\n\n

Sabit bir uzunluk ve benzer test ko\u015fullar\u0131 alt\u0131nda, ara\u015ft\u0131rmac\u0131lar lif miktar\u0131n\u0131 art\u0131rd\u0131k\u00e7a mukavemet \u00f6nce y\u00fckseldi, ard\u0131ndan d\u00fc\u015ft\u00fc. Hem kesme hem de s\u0131n\u0131rlanmam\u0131\u015f s\u0131k\u0131\u015ft\u0131rma sonu\u00e7lar\u0131, 0,31 TP3T kuru toprak k\u00fctlesi<\/strong> test edilen be\u015f g\u0131da maddesi aras\u0131nda. Daha fazla lif i\u00e7eri\u011fi, otomatik olarak daha iyi sonu\u00e7 anlam\u0131na gelmiyordu.<\/p>\n\n\n\n

\u0130\u00e7erik 0,1%\u2019den 0,3%\u2019ye y\u00fckseldi\u011finde, bildirilen ortalama kesme mukavemeti art\u0131\u015flar\u0131 lif uzunlu\u011funa ve s\u0131n\u0131rlay\u0131c\u0131 bas\u0131nca ba\u011fl\u0131yd\u0131. Bu art\u0131\u015flar, ara\u015ft\u0131rmac\u0131lar taraf\u0131ndan a\u00e7\u0131klanan kar\u015f\u0131la\u015ft\u0131rmalar genelinde en az 3,2% d\u00fczeyindeydi. Ortalama s\u0131n\u0131rland\u0131r\u0131lmam\u0131\u015f s\u0131k\u0131\u015ft\u0131rma art\u0131\u015flar\u0131, 6 mm serisi i\u00e7in 136%, 9 mm serisi i\u00e7in 82% ve 12 mm serisi i\u00e7in 79% olarak \u00f6l\u00e7\u00fcld\u00fc. Her art\u0131\u015f, iki elyaf takviyeli<\/strong> deneydeki kar\u0131\u015f\u0131mlar. Bu durum, i\u015flenmemi\u015f topra\u011fa k\u0131yasla bir kazan\u00e7 olarak de\u011ferlendirilmemelidir.<\/p>\n\n\n\n

Ayn\u0131 d\u00f6ng\u00fc say\u0131s\u0131 ve s\u00fcresinde, bildirilen kar\u015f\u0131la\u015ft\u0131rmada 0,3% kar\u0131\u015f\u0131m\u0131, 0,4% kar\u0131\u015f\u0131m\u0131na k\u0131yasla ortalama 9,8% daha y\u00fcksek bas\u0131n\u00e7 dayan\u0131m\u0131 sergilemi\u015ftir. Bunun muhtemel bir m\u00fchendislik yorumu, ilave edilen filamentlerin zamanla e\u015fit \u015fekilde yay\u0131lmas\u0131n\u0131n ve s\u0131k\u0131\u015ft\u0131r\u0131lmas\u0131n\u0131n zorla\u015fmas\u0131d\u0131r. \u00c7al\u0131\u015fmada mikroskobik bir mekanizma izole edilmedi\u011finden, yeni bir denemede topaklanma, bo\u015fluklar, su i\u00e7eri\u011fi ve yo\u011funlu\u011fu inceleyerek bu yorumu do\u011frulayabiliriz.<\/p>\n\n\n\n

0.3%\u2019yi bir deneme merkezi<\/strong> Proje topra\u011f\u0131 ve elyaf\u0131, test edilen sisteme benzedi\u011finde. Bunun yan\u0131nda bir alt ve bir \u00fcst seviyeyi de test edin. Farkl\u0131 bir toprak i\u00e7in farkl\u0131 bir miktar gerekiyorsa, \u00f6l\u00e7\u00fclen sonucu esas al\u0131n. Bitki operat\u00f6r\u00fcn\u00fcn bunu betonun kg\/m\u00b3 de\u011feriyle kar\u0131\u015ft\u0131rmamas\u0131 i\u00e7in, her deneme formuna kuru k\u00fctle baz\u0131nda y\u00fczde de\u011ferini kaydedin.<\/p>\n\n\n\n

Lif Uzunlu\u011fu, Kayma ve S\u0131k\u0131\u015ft\u0131rma Kuvvetlerini Farkl\u0131 \u015eekilde Etkiler<\/strong><\/strong><\/h2>\n\n\n\n

Bu kar\u015f\u0131la\u015ft\u0131rmada, kesme uzunlu\u011fu 6 mm\u2019den 9 mm\u2019ye ve ard\u0131ndan 12 mm\u2019ye \u00e7\u0131kt\u0131k\u00e7a serbest bas\u0131n\u00e7 dayan\u0131m\u0131 genel olarak art\u0131\u015f g\u00f6sterdi. 9 mm\u2019den 12 mm\u2019ye ge\u00e7i\u015fteki art\u0131\u015f ise nispeten k\u00fc\u00e7\u00fckt\u00fc. Be\u015f dozaj serisi genelinde, son ad\u0131m i\u00e7in bildirilen ortalama art\u0131\u015flar s\u0131ras\u0131yla 7,6%, 2,9%, 4,3%, 4,3% ve 5,4% olarak kaydedilmi\u015ftir.<\/p>\n\n\n\n

Kesme sonucu farkl\u0131 bir e\u011filim sergiledi. Daha d\u00fc\u015f\u00fck lif i\u00e7eri\u011finde, kesme mukavemeti 9 mm'de en y\u00fcksek noktaya ula\u015ft\u0131 ve ard\u0131ndan 12 mm'de azald\u0131. 0,3% veya daha y\u00fcksek i\u00e7eriklerde ise, bildirilen kesme mukavemeti genel olarak uzunluk artt\u0131k\u00e7a artmaya devam etti. Orijinal ara\u015ft\u0131rmac\u0131lar, kendi topraklar\u0131 ve test ko\u015fullar\u0131 i\u00e7in dengeli bir uzunluk olarak 9 mm'yi \u00f6nerdiler.<\/p>\n\n\n\n

Daha uzun bir elyaf daha geni\u015f bir alan\u0131 kaplayabilir; ancak ayn\u0131 zamanda homojen kar\u0131\u015fmay\u0131 engelleyebilir veya malzemenin s\u0131k\u0131\u015ft\u0131r\u0131lma \u015feklini de\u011fi\u015ftirebilir. K\u0131sa bir elyaf ise kolayca da\u011f\u0131labilir, ancak daha az etkili bir tutunma sa\u011flar. Bir \u015fantiye projesi i\u00e7in, uzunlu\u011fu belirleyici mukavemet gereksinimine ve ekibin s\u0131k\u0131\u015ft\u0131r\u0131lm\u0131\u015f tabakan\u0131n tamam\u0131na ne kadar yayabilece\u011fine g\u00f6re se\u00e7in.<\/p>\n\n\n\n

Ecocretefiber\u2122 \u015fu anda a\u015fa\u011f\u0131dakileri listelemektedir: monofilament PP elyaf<\/u><\/a>\u00a0birka\u00e7 kesim uzunluklar\u0131: 6, 9 ve 12 mm dahil<\/a>. Yay\u0131nlanan \u00fcr\u00fcn sayfas\u0131nda, yo\u011funlu\u011fun 0,91 g\/cm\u00b3 oldu\u011fu ve \u00e7e\u015fitli \u00e7ap aral\u0131klar\u0131 bulundu\u011fu belirtilmektedir. Deney makalesinde ise farkl\u0131 bir elyaf yo\u011funlu\u011fu ve di\u011fer kalite \u00f6zellikleri listelenmi\u015ftir. Kesim uzunluklar\u0131n\u0131n ayn\u0131 olmas\u0131, iki elyaf\u0131n birbirinin ayn\u0131s\u0131 oldu\u011fu veya ayn\u0131 zemin mukavemeti sa\u011flayaca\u011f\u0131 anlam\u0131na gelmez.<\/strong>\u00a0Ekibimizden g\u00fcncel kalite veri sayfas\u0131n\u0131 isteyin ve se\u00e7ti\u011finiz malzemenin kendi topra\u011f\u0131n\u0131za uygunlu\u011funu kontrol edin.<\/p>\n\n\n\n

\"Metrik<\/figure>\n\n\n\n

Bulgular\u0131 Nas\u0131l Yararl\u0131 Bir Dava Haline Getirebiliriz?<\/strong><\/strong><\/h2>\n\n\n\n

\u0130n\u015faat alan\u0131ndan temsili bir numune alarak ba\u015flay\u0131n. Numunenin derecelendirilmesini, plastisitesini, do\u011fal su i\u00e7eri\u011fini, s\u0131k\u0131\u015ft\u0131rma e\u011frisini ve ilgili donma duyarl\u0131l\u0131\u011f\u0131n\u0131 belirleyin. Bir b\u00f6lgeden al\u0131nan yumu\u015fak bir toprak, siltli bir set, gran\u00fcler dolgu veya kire\u00e7le i\u015flenmi\u015f bir topraktan farkl\u0131 davran\u0131\u015f g\u00f6sterebilir. Projede bir ba\u011flay\u0131c\u0131 kullan\u0131l\u0131yorsa, bunu yeni bir kar\u0131\u015f\u0131m olarak de\u011ferlendirin ve buna g\u00f6re test edin.<\/p>\n\n\n\n

Net bir kontrol grubu haz\u0131rlay\u0131n. \u015eunlar\u0131 dahil edin: ayn\u0131 hedef nem ve s\u0131k\u0131\u015ft\u0131rma d\u00fczeyine sahip i\u015flenmemi\u015f toprak<\/strong>, ard\u0131ndan ayn\u0131 ko\u015fulland\u0131rma alt\u0131nda lif uzunluklar\u0131n\u0131 ve kuru k\u00fctle oranlar\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131r\u0131n. Her parti i\u00e7in kuru toprak k\u00fctlesini, lif k\u00fctlesini, ilave edilen su miktar\u0131n\u0131, ger\u00e7ek nem oran\u0131n\u0131 ve elde edilen kuru yo\u011funlu\u011fu kaydedin. Liflerin topaklanmadan ayr\u0131lmas\u0131n\u0131 sa\u011flayacak bir kar\u0131\u015ft\u0131rma s\u0131ras\u0131 belirleyin. Kesin s\u0131ra, planlanan ekipman \u00fczerinde do\u011frulanmal\u0131d\u0131r.<\/p>\n\n\n\n

Test numunelerini kontroll\u00fc bir y\u00f6ntemle s\u0131k\u0131\u015ft\u0131r\u0131n ve ger\u00e7ek yo\u011funluklar\u0131n\u0131 \u00f6l\u00e7\u00fcn. Yo\u011funlu\u011fu dikkate almadan nominal lif dozunu e\u015fle\u015ftirmek, yan\u0131lt\u0131c\u0131 bir mukavemet kar\u015f\u0131la\u015ft\u0131rmas\u0131na yol a\u00e7abilir. Paralel numuneleri, projenin se\u00e7ilen donma-\u00e7\u00f6z\u00fclme program\u0131na g\u00f6re ko\u015fulland\u0131r\u0131n ve kontroll\u00fc olmayan su kayb\u0131 veya kazan\u0131m\u0131ndan koruyun. D\u00f6ng\u00fcye tabi tutulmam\u0131\u015f ve d\u00f6ng\u00fcye tabi tutulmu\u015f setleri test edin ve olu\u015fabilecek her t\u00fcrl\u00fc \u00e7atlak veya \u015fekil de\u011fi\u015fikli\u011fini belgelendirin.<\/p>\n\n\n\n

Sonu\u00e7lar\u0131 g\u00f6rmeden \u00f6nce performans \u00f6l\u00e7\u00fct\u00fcn\u00fc se\u00e7in. ASTM D2166\/D2166M-24<\/u><\/a> uygun kohezif zeminlerin s\u0131n\u0131rs\u0131z bas\u0131n\u00e7 dayan\u0131m\u0131n\u0131 ele al\u0131r. ASTM D2850-26<\/u><\/a> Bu b\u00f6l\u00fcm, s\u0131n\u0131rland\u0131rmal\u0131, konsolide olmayan ve drenajs\u0131z \u00fc\u00e7 eksenli s\u0131k\u0131\u015ft\u0131rma deneylerini kapsamaktad\u0131r. Y\u00f6ntemler farkl\u0131 gerilme ko\u015fullar\u0131n\u0131 ele almaktad\u0131r ve bunlar\u0131n say\u0131sal sonu\u00e7lar\u0131 birbiriyle de\u011fi\u015ftirilmemelidir. S\u00f6zle\u015fmenin g\u00fcncel bask\u0131s\u0131na ve laboratuvar\u0131n onaylanm\u0131\u015f prosed\u00fcr\u00fcne uyulmal\u0131d\u0131r.<\/p>\n\n\n\n

Yol kaplamas\u0131 tasar\u0131m\u0131nda, projenin ayr\u0131ca kabarma ve erime kaynakl\u0131 zay\u0131flama konusunda do\u011frudan kan\u0131tlara ihtiya\u00e7 duyup duymad\u0131\u011f\u0131n\u0131 g\u00f6z \u00f6n\u00fcnde bulundurun. Art\u0131k \u00fcretilmeyen ASTM D5918-13e1<\/u><\/a> Bu sonu\u00e7lar ge\u00e7mi\u015fte ele al\u0131nm\u0131\u015ft\u0131, ancak ilgili standart 2022 y\u0131l\u0131nda y\u00fcr\u00fcrl\u00fckten kald\u0131r\u0131lm\u0131\u015ft\u0131r. Bu standard\u0131 h\u00e2l\u00e2 ge\u00e7erli ve y\u00fcr\u00fcrl\u00fckte olan bir kabul standard\u0131 olarak sunmay\u0131n\u0131z. Jeoteknik tasar\u0131mc\u0131 ve i\u015fverenle uygun bir g\u00fcncel test program\u0131 \u00fczerinde anla\u015f\u0131n\u0131z. Sadece erime sonras\u0131 mukavemet sonucu tek ba\u015f\u0131na kabarma kontrol\u00fcn\u00fc sa\u011flayamaz.<\/p>\n\n\n\n

\"\u0130ki<\/figure>\n\n\n\n

Tam \u00d6l\u00e7ekli Yerle\u015ftirme \u00d6ncesi Kar\u0131\u015ft\u0131rma ve \u015eantiye Kontroller<\/strong><\/strong><\/h2>\n\n\n\n

Bir elyaf, ancak topra\u011fa e\u015fit bir \u015fekilde ula\u015ft\u0131\u011f\u0131nda fayda sa\u011flayabilir. Se\u00e7ilen elyaf\u0131n ger\u00e7ek kar\u0131\u015ft\u0131r\u0131c\u0131da kolayca a\u00e7\u0131l\u0131p a\u00e7\u0131lmad\u0131\u011f\u0131n\u0131 kontrol edin. Bir partiden, bo\u015faltman\u0131n ba\u015flang\u0131c\u0131ndan ve sonundan al\u0131nan malzemeler de dahil olmak \u00fczere birka\u00e7 numuneyi inceleyin. Demetleri ve ola\u011fand\u0131\u015f\u0131 derecede y\u00fcksek yo\u011funlu\u011fa sahip alanlar\u0131 aray\u0131n lif i\u00e7eri\u011fi<\/a>. Ard\u0131ndan, kar\u0131\u015f\u0131m\u0131n ama\u00e7lanan kat kal\u0131nl\u0131\u011f\u0131nda h\u00e2l\u00e2 yay\u0131labilece\u011fini ve s\u0131k\u0131\u015ft\u0131r\u0131labilece\u011fini do\u011frulay\u0131n.<\/p>\n\n\n\n

Saha hesaplamas\u0131nda kuru k\u00fctle baz\u0131n\u0131 g\u00f6z \u00f6n\u00fcnde bulundurun. Bir parti 2.000 kg kuru toprak i\u00e7eriyorsa, 0,3% de\u011feri 6 kg lif miktar\u0131na kar\u015f\u0131l\u0131k gelir. Islak toprak k\u00fctlesi daha y\u00fcksek olabilir ve su i\u00e7eri\u011findeki de\u011fi\u015fikliklere ba\u011fl\u0131 olarak de\u011fi\u015fir. Bu nedenle \u015fantiye ekibi, hedef de\u011feri nominal kamyon y\u00fck\u00fc a\u011f\u0131rl\u0131\u011f\u0131ndan tahmin etmek yerine, \u00f6l\u00e7\u00fclen kuru k\u00fctle veya \u00fczerinde anla\u015fmaya var\u0131lm\u0131\u015f kuru yo\u011funluk ve parti hacminden hesaplamal\u0131d\u0131r.<\/p>\n\n\n\n

Deneme sahas\u0131nda nemi ve yerinde yo\u011funlu\u011fu \u00f6l\u00e7\u00fcn ve bitmi\u015f y\u00fczeyi kontrol edin. Kararla\u015ft\u0131r\u0131lan numune alma plan\u0131 uyar\u0131nca numuneler veya karotlar al\u0131n. \u0130yi bir laboratuvar sonucu, s\u0131k\u0131\u015ft\u0131rmas\u0131 yetersiz, \u0131slak b\u00f6lgeler i\u00e7eren veya da\u011f\u0131l\u0131m\u0131 d\u00fczensiz bir tabakay\u0131 kurtaramaz. Drenaj ve kaplama tasar\u0131m\u0131, FHWA\u2019n\u0131n belirtti\u011fi gibi donma sorununa y\u00f6nelik \u00e7\u00f6z\u00fcm\u00fcn bir par\u00e7as\u0131 olmaya devam eder; alt zemin i\u015fleme k\u0131lavuzu<\/u><\/a> a\u00e7\u0131k\u00e7a ortaya koyuyor.<\/p>\n\n\n\n

Shandong Jianbang, uygunluk denemesi i\u00e7in elyaf numuneleri ve g\u00fcncel teknik \u00f6zellikleri sa\u011flayabilir. Bize toprak s\u0131n\u0131f\u0131n\u0131, hedeflenen elyaf uzunlu\u011funu, planlanan kar\u0131\u015ft\u0131rma ekipman\u0131n\u0131, nem aral\u0131\u011f\u0131n\u0131 ve gerekli testleri bildiriniz. Test edilecek PP kalitesinin se\u00e7ilmesinde yard\u0131mc\u0131 olabiliriz; kabul kriterlerini ise proje m\u00fchendisi belirler.<\/p>\n\n\n\n

\"Yol<\/figure>\n\n\n\n

Al\u0131c\u0131lar\u0131n ve M\u00fchendislerin S\u0131k\u00e7a Sordu\u011fu Sorular<\/strong><\/strong><\/h2>\n\n\n\n

Y\u00fczde 0,3, metrek\u00fcp ba\u015f\u0131na 0,3 kilogram anlam\u0131na m\u0131 geliyor?<\/strong><\/strong><\/h3>\n\n\n\n

Hay\u0131r. Bu \u00e7al\u0131\u015fmada bu de\u011fer, 100 kg kuru toprak ba\u015f\u0131na 0,3 kg lif veya 1.000 kg kuru toprak ba\u015f\u0131na 3 kg anlam\u0131na gelmektedir. kg\/m\u00b3 cinsinden dozaj, s\u0131k\u0131\u015ft\u0131r\u0131lm\u0131\u015f kuru yo\u011funlu\u011fa ba\u011fl\u0131d\u0131r. Beton lif dozaj kurallar\u0131, toprak denemelerine aynen uygulanmamal\u0131d\u0131r.<\/p>\n\n\n\n

Lif, donma kaynakl\u0131 kabarmay\u0131 \u00f6nledi mi?<\/strong><\/strong><\/h3>\n\n\n\n

Deneyde, d\u00f6ng\u00fc sonras\u0131 kesme ve s\u0131k\u0131\u015ft\u0131rma testlerinin sonu\u00e7lar\u0131 bildirilmi\u015ftir. Deneyde, donma kabarmas\u0131n\u0131n do\u011frudan bir \u00f6l\u00e7\u00fcm\u00fc ya da nicel bir uygulama faydas\u0131n\u0131 de\u011ferlendirmek i\u00e7in i\u015flenmemi\u015f bir kontrol grubu sunulmam\u0131\u015ft\u0131r. Bu sonu\u00e7lar\u0131n proje kapsam\u0131nda ayr\u0131 bir de\u011ferlendirmeye tabi tutulmas\u0131 gerekmektedir.<\/p>\n\n\n\n

So\u011fuk B\u00f6lgelerdeki Her Proje 15 Donma-\u00c7\u00f6z\u00fclme D\u00f6ng\u00fcs\u00fc Kullanmal\u0131 m\u0131?<\/strong><\/strong><\/h3>\n\n\n\n

Hay\u0131r. Belirtilen mukavemet de\u011fi\u015fiklikleri, bir laboratuvar program\u0131 kapsam\u0131nda yakla\u015f\u0131k 15 d\u00f6ng\u00fcden sonra azalm\u0131\u015ft\u0131r. Bir proje kapsam\u0131nda, iklim ko\u015fullar\u0131n\u0131, su ko\u015fullar\u0131n\u0131, malzemeleri ve s\u00f6zle\u015fme gerekliliklerini yans\u0131tan maruz kalma ve kabul kurallar\u0131 se\u00e7ilmelidir.<\/p>\n\n\n\n

12 milimetre, 9 milimetreden daha m\u0131 iyidir?<\/strong><\/strong><\/h3>\n\n\n\n

Bu, hedefe g\u00f6re de\u011fi\u015fir. \u00c7al\u0131\u015fmada, ortalama olarak 9 ila 12 mm aras\u0131nda k\u00fc\u00e7\u00fck bir s\u0131k\u0131\u015ft\u0131rma kazanc\u0131 tespit edilirken, kesme e\u011filimleri ise malzeme i\u00e7eri\u011fine ve s\u0131n\u0131rland\u0131rma ko\u015fullar\u0131na ba\u011fl\u0131 olarak de\u011fi\u015fti. Ara\u015ft\u0131rmac\u0131lar, test ettikleri toprak i\u00e7in 9 mm\u2019lik bir elyaf\u0131 dengeli bir \u00f6neri olarak belirlediler. Se\u00e7iminizi bir proje denemesi ile teyit edin.<\/p>\n\n\n\n

Beton PP elyaf\u0131 do\u011frudan topra\u011fa yerle\u015ftirilebilir mi?<\/strong><\/strong><\/h3>\n\n\n\n

Beton i\u00e7in sat\u0131lan bir \u00fcr\u00fcn, uygun bir kesim uzunlu\u011funda mevcut olabilir; ancak y\u00fczeyi, \u00e7ap\u0131, da\u011f\u0131l\u0131m\u0131 ve zemin i\u00e7indeki performans\u0131 a\u00e7\u0131s\u0131ndan uygunluk de\u011ferlendirmesi yap\u0131lmal\u0131d\u0131r. \u00dcr\u00fcn\u00fc belirlemeden \u00f6nce \u00fcr\u00fcn veri sayfas\u0131n\u0131 ve zemine \u00f6zg\u00fc kar\u0131\u015ft\u0131rma ve mukavemet testlerini kullan\u0131n.<\/p>\n\n\n\n

Sonu\u00e7<\/strong><\/strong><\/h2>\n\n\n\n

En yararl\u0131 ders, elde edilen sonucun niteli\u011fidir. Test edilen yumu\u015fak toprakta, tekrarlanan donma ve \u00e7\u00f6z\u00fclme i\u015flemleri mukavemeti d\u00fc\u015f\u00fcrm\u00fc\u015ft\u00fcr; be\u015f deneme seviyesinden en iyi sonucu orta lif i\u00e7eri\u011fi vermi\u015ftir ve en uygun kesme uzunlu\u011fu, ana sorun olarak kesme mi yoksa s\u0131k\u0131\u015ft\u0131rma m\u0131 oldu\u011fu durumuna ba\u011fl\u0131 olarak de\u011fi\u015fmi\u015ftir. 0,3% kuru toprak dozaj\u0131 ve 9 mm \u00f6nerisi, kar\u015f\u0131la\u015ft\u0131r\u0131labilir bir \u00e7al\u0131\u015fma i\u00e7in sa\u011flam ba\u015flang\u0131\u00e7 noktalar\u0131d\u0131r. deneme<\/strong>, ba\u015fka bir zemin t\u00fcr\u00fc veya Ecocretefiber\u2122 s\u0131n\u0131f\u0131 i\u00e7in garanti edilen tasar\u0131m de\u011ferleri de\u011fildir.<\/p>\n\n\n\n

Shandong Jianbang Kimyasal Elyaf A.\u015e., Ecocretefiber\u2122 \u00fcr\u00fcn\u00fcn\u00fc tedarik etmektedir PP elyaf se\u00e7enekleri<\/a> ve bir proje ekibinin laboratuvar ve saha de\u011ferlendirmeleri i\u00e7in numune se\u00e7mesine yard\u0131mc\u0131 olabilir. Ekibimizle ileti\u015fime ge\u00e7in<\/u><\/a>\u00a0toprak verileriniz, zemin haz\u0131rlama plan\u0131n\u0131z ve kabul kriterlerinizle birlikte. Tekrarlanabilir bir deneme, sat\u0131n alma karar\u0131 ve alt zemin \u015fartnamesi i\u00e7in \u00e7ok daha sa\u011flam bir temel sa\u011flar.<\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

A road subgrade can appear firm before winter and lose support when spring thaw brings water back into its pores. For a contractor, that change matters more than how a soil performs on a dry day. Polypropylene (PP) fibers can help a compacted soil retain strength through freezing and thawing, but the correct fiber length […]<\/p>\n","protected":false},"author":3,"featured_media":2886,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92],"tags":[218,217,219,215,216,220],"class_list":["post-2883","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-polypropylene-fiber","tag-fiber-reinforced-soil-dosage","tag-freeze-thaw-subgrade","tag-polypropylene-fiber-frost-resistance","tag-polypropylene-fiber-modified-soil","tag-pp-fiber-soil-stabilization","tag-unconfined-compressive-strength"],"_links":{"self":[{"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/posts\/2883","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/comments?post=2883"}],"version-history":[{"count":1,"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/posts\/2883\/revisions"}],"predecessor-version":[{"id":2890,"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/posts\/2883\/revisions\/2890"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/media\/2886"}],"wp:attachment":[{"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/media?parent=2883"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/categories?post=2883"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecocretefiber.com\/tr\/wp-json\/wp\/v2\/tags?post=2883"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}