| 北京中紡纖建科技有限公司，北京 100025 |
| 摘要：用鋼纖維阻止硬化混凝土的開(kāi)裂，提高混凝土韌性和抗沖擊性能時(shí)，鋼纖維存在易銹蝕、易結(jié)團(tuán)、磨損機(jī)械、運(yùn)輸及施工困難等問(wèn)題，尤其在潮濕工況下的海港工程、易于出現(xiàn)滲水的隧道工程、接觸腐蝕氣體等惡劣環(huán)境中，鋼纖維的易銹蝕等缺陷嚴(yán)重影響了混凝土的耐久性，減少了工程的安全運(yùn)行壽命。采用有機(jī)材料經(jīng)特殊加工工藝制得的凱泰（CTA）改性聚丙烯粗纖維，為這些問(wèn)題提供了一個(gè)全新的解決辦法，在保證較好的工作性能及抗壓強(qiáng)度下，與鋼纖維相比用很少的摻加量，可以達(dá)到近似于鋼纖維的增強(qiáng)增韌效果，特別是在惡劣條件下使用，對(duì)改善混凝土的耐久性更有重要意義。本文通過(guò)分析凱泰（CTA）改性聚丙烯粗纖維對(duì)噴射混凝土及高性能混凝土的性能影響，探討了凱泰（CTA）改性聚丙烯粗纖維替代或部分替代鋼纖維或鋼絲網(wǎng)的可能性及應(yīng)用前景。 |
| 關(guān)鍵詞：鋼纖維 凱泰（CTA）改性聚丙烯粗纖維 纖維混凝土 韌性 耐久性 |
| A Study On The Application Of CTA Fiber In Concrete |
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Jin Jian,Liu Lijun,Shi Xiaoxing Beijing CTA Fiber Co.,Ltd,Beijing 100025, China |
| Abstract：When used to prevent the crack of hard concrete to appear ,steel fiber can improve toughness and impact resistance, But steel fiber tends to rust, tangle with each other and to be difficult to convey，construct，especially under the moist condition such as tunnel and maritime projects. These defect of steel fiber has a bad damage on the durability of the concrete. Therefore, We prepare CTA steel wire-like fiber by using organic materials and special technics to solve the problem. Under the precondition of the concrete having high performance , the concrete adding fewer CTA fiber, has as good effect as the the concrete adding steel fiber. This paper studies the influence of CTA steel wire-like fiber on the properties of shot concrete and high-performance concrete,and also discusses the possibility and the future of the CTA steel wire-like fiber partially replacing steel fiber or steel meshwork. |
| Key words：steel fiber; CTA steel wire-like fiber; fiber concrete; toughness; durability |
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| 全文下載：凱泰（CTA）改性聚丙烯粗纖維在混凝土中的應(yīng)用研究 |
北京中紡纖建科技有限公司
