湿热-碳化下环氧树脂混凝土的抗碳化性能试验研究

打开文本图片集

DOI：10.19860/j.cnki.issn1005-8249.2024.01.006

ZHAO Huaixuan’， ZHANG Qizhi2 （1.Henan Yuxing Construction Engineering Management Co.，Ltd.， Zhumadian 4630oo，China； 2.Huanghuai University，Zhumadian 463OOo，China）

Abstract：Inordertopreparehig-performaneanddurableconcrete，theinfluenceofepoxyesincontentonthecarbonationresisnceof concrete，theinfluenceofwetheatcylenumberonthcarbonationesistanceofepoyresinconcrete，theifluenceofcarbonationcycle numberonthecarbonationresistanceofepoxyresinconcrete，andtheinfluenceofwetheatcarbonationcyclenumberonthecarbonation resistanceofepoxyesinconcretewereanalyzdthroughindorexperiments.Theresultsshowedthat：teaditionofepoxyesincaniprove thecarbontionresistanceofconcrete.However，excesiveepoxyresincontentcanotsignificantlyimprovethecarbonationresistanceof concrete.The optimal dosage of epoxy resin for this type of concrete specimen is 1.5% ；As the number of wet heat cycles，carbonation cycles， andweteatboatilsssthboatipthfetedalleasatishbotisisac； In the hree tests，theorderof influenceonthecarbonationresistance of concrete is：humid heatcarbonation > carbonation>humid heat.The research conclusion can provide data support for the preparation of high-performance concrete in the future.

Keywords：epoxy resin content；hygrothermal carbonation cycle；concrete；carbonation resistance

0 引言

由于混凝土长期暴露于空气之中，而一旦混凝土出现开裂则会加快混凝土及其内部钢筋的破坏，因此混凝土的抗裂能力和抗碳化能力显得十分重要[1-2]。（剩余5542字）