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周立紅，侯鑫鑫，王 碩

（ 中鐵建物產(chǎn)科技有限公司 ，河南 洛陽 471000)

摘 要： 以 C150 超高性能混凝土配合比為例，通過設(shè)計正交試驗，并使用AHP層次分析法， 同時設(shè)置權(quán)重獲得各因素對C150綜合性能影響大小，研究了配合比中主要膠凝材料摻量對其抗壓強度、流動性能及水化放熱量3項性能綜合指標(biāo)的影響。結(jié)果表明：對 C150 超高性能混凝土綜合性能影響程度依次為粉煤灰 (0. 35) > 偏高嶺土 (0. 29) > 硅灰 (0. 20) > 水泥 (0. 17) , 最佳配合比為水泥用量700kg/m3 、硅灰用量200kg/m3 、偏高嶺土用量100kg/m3 、粉煤灰用量150kg/m3 。研究成果對于C150 超高性能混凝土配合比設(shè)計具有一定指導(dǎo)意義。

關(guān)鍵詞：超高性能混凝土；層次分析法；影響權(quán)重；正交試驗；綜合評價

中圖分類號：TU528 

文獻標(biāo)志碼：A 

文章編號：1005- 8249 (2024) 03- 0035- 05 

DOI：10.19860/j.cnki.issn1005-8249.2024.03.008

ZHOU Lihong , HOU Xinxin , WANG Shuo

(China Railway Construction Materials Industry Technology Co. ，Ltd. ，Luoyang , 471000 , China)

Abstract : Taking the mix proportion of C150 ultra - high performance concrete as an example , the influence of various factors on the comprehensive performance of C150 was obtained by designing orthogonal experiments and using the Analytic Hierarchy Process (AHP) with weights set. The influence of the main cementitious materials added in the mix proportion on the comprehensive indicators of its compressive strength , flow performance , and hydration heat release was studied. Research has shown that the comprehensive performance of C150 ultra - high performance concrete is affected by fly ash (0. 35) , metakaolin (0. 29) , silica fume (0. 20) , and cement (0. 17) in the following order. The optimal mix ratio is 700 kg/m3 of cement , 200 kg/m3 of silica fume , 100 kg/m3 of metakaolin , and 150 kg/m3 of fly ash. The research results have certain guiding significance for the mix design of C150 ultra - high performance concrete.

Keywords : ultra high performance concrete; analytic hierarchy process; influence weight; orthogonal experiment; comprehensive evaluation

作者簡介： 周立紅 (1982—) , 男，本科， 高級工程師，研究方向：鋼結(jié)構(gòu)及超高性能混凝土材料研究工作。

收稿日期：2023-04-27