Kev Tshawb Fawb & Daim Ntawv Thov Txheej Txheem Ntawm Organic Synthetic Fiber Concrete (II)

2.2 Nylon fiber ntau pob zeb

Nylon fiber ntau pob zeb yog ib qho ntawm cov polymer fibers thaum ntxov siv hauv cov cement thiab pob zeb, tus nqi kuj yog siab, thiab daim ntawv thov raug txwv.Kev sib koom ua ke ntawm nylon fiber ntau tuaj yeem txo qis qis qis qis ntawm cov pob zeb, tab sis cov flexural, compressive, axial siab, elastic pwm thiab kev ntxhov siab-strain zog tsis sib txawv ntawm cov pob zeb zoo tib yam, thiab cov impermeability thiab xeb inhibition kev ua tau zoo, li no txhim kho lub durability ntawm pob zeb.

Thaum ib qho me me ntawm cov nylon fiber ntau (0.052%) ntxiv rau cov pob zeb, cov qhob matrix tuaj yeem tau txais cov txiaj ntsig tsis zoo ntawm cov qauv kev ua tau zoo, txo cov yas shrinkage tawg ntawm pob zeb, thiab txhim kho qhov cuam tshuam ntawm cov pob zeb.Thaum cov koob tshuaj tau nce mus rau 0.26%, qhov cuam tshuam tsis kam ntawm pob zeb tuaj yeem nce ntxiv.Nylon fiber ntau tuaj yeem txhim kho qhov Frost tsis kam ntawm pob zeb, tiv thaiv lub zog poob ntawm cov pob zeb, thiab txhim kho cov tsos ntawm cov khoom kuaj.Wan Zhongxiang et al.ntseeg tias qhov no yog vim muaj kev sib koom ua ke ntawm nylon fibers los txo cov kab nrib pleb los ntawm kev ntxhov siab sab hauv ntawm pob zeb, nrog rau qhov nce ntawm cov roj cov ntsiab lus ntawm cov pob zeb, thiab qhov nce hauv kev tiv thaiv kev nthuav dav thiab osmotic siab.Lawv pom tias pob zeb doped nrog 0.5% ntim fractional nylon fiber txo qhov dynamic elastic modulus poob thiab huab hwm coj poob los ntawm 10.5% thiab 1.7%, feem, piv nrog cov qauv ntsuas tom qab 300 lub voj voog khov-thaw.

2.3 Polyethylene fiber ntau pob zeb

Vim nws tsis tshua muaj modulus ntawm elasticity, polyethylene fiber ntau tsis tshua muaj siv nyob rau hauv cement composites txog tam sim no, thiab nws tau kawm tsis zoo.KCG Ong, M. Basheerkhan, P. Paramasivam nyob rau hauv lub low-speed impact test ntawm polyethylene fiber ntau pob zeb slab, nyob rau hauv cov ntsiab lus fiber ntau ntawm 0.5%, 1% thiab 2%, lub zog tawg tus nqi nce 19%, 53% thiab 80 %, raws.Txawm hais tias cov txiaj ntsig no me dua li qhov tseem ceeb ntawm steel fiber ntau pob zeb ntawm tib cov ntsiab lus (qhov tseem ceeb ntawm steel fiber ntau pob zeb slabs yog 40%, 100% thiab 136%, feem), lawv cov nqi tsawg dua li cov hlau fiber ntau, yog tias cov elastic. modulus txog li 70GN / m2 tuaj yeem tsim tau siab elastic pwm polyethylene fiber ntau, qhov pheej yig dua fiber ntau muaj peev xwm zoo hauv thaj chaw ntawm cementitious composites.

Laizhou Kaihui Machinery Co., Ltd yog cov chaw tsim khoom lag luampob zeb fiber ntau extrusion kab.Txais tos tiv tauj peb kom tau txais xov xwm ntxiv.