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王   旭^1 ,2 , 張   政 ¹ , 霍志強¹ , 夏金剛^1 ,2, 文安飛^1 ,2, 楊征勛^1 ,2,

( 1. 四川交通職業技術學院，四川 成都 611130;

2. 新疆農業大學交通與物流工程學院，新疆 烏魯木齊 830052)

摘   要： 橡膠混凝土的配合比設計對其性能及壽命具有重要意義 。基于 RSM 的 Box-Behnken 中心組合設計，運用新型親水性橡膠，以水泥 、粉煤灰 、親水性橡膠摻量作為影響因素，對親水性橡膠復合水泥混凝土進行配合比優化，并以響應值建立預測模型。結果表明： 水泥、粉煤灰、親水性橡膠摻量分別為 360 kg/m3、65 kg/m3 和 50 kg/m3 時，所得28d 抗彎拉強度值最大，預測模型適應性良好；水泥、粉煤灰 、親水性橡膠三者  交互作用明顯，三者對混凝土抗彎強度的影響依次為親水性橡膠摻量、水泥摻量、粉煤灰摻量。研究結論可以為親水性橡膠復合混凝土的配合比設計提供參考。

關鍵詞： 普通硅酸鹽水泥； RSM 響應模型； 抗彎拉強度； 預測模型

中圖分類號： TU528      

文獻標志碼： A      

文章編號： 1005-8249 (2023) 03-0011-05

DOI : 10. 19860/j.cnki.issn1005-8249.2023.03.011

WANG Xu^1 , 2 , ZHANG Zheng¹ , HUO Zhiqiang¹ , XIA Jingang^1 , 2 , WEN Anfei^1 , 2 , YANG Zhengxun^1 , 2

( 1. Sichuan Transportation Vocational and Technical College , Chengdu 611130 , China;

2. College of Transportation and Logistics Engineering , Xinjiang Agricultural University , Urumqi 830052 ,  China)

Abstract：The design of rubber concrete ratio is important for its performance and lifetime. Based on the Box-Behnken central combination design of response surface method, a new hydrophilic rubber is used to optimize the ratio of hydrophilic rubber composite cement concrete with cement, fly ash and hydrophilic rubber admixture as influencing factors, and a prediction model is established with response values. The results show that the 28d flexural tensile strength values of cement, fly ash and hydrophilic rubber are the largest when the amounts of cement, fly ash and hydrophilic rubber are 360kg/m3, 65kg/m3 and 50kg/m3 respectively, and the prediction model is well adapted; the interaction of cement, fly ash and hydrophilic rubber is obvious, and the effects of the three on the flexural strength of concrete are in the order of the amount of cement, hydrophilic rubber and fly ash. The conclusion of the study can provide a reference for the design of the ratio of hydrophilic rubber composite concrete.

 Keywords: ordinary portland cement; RSM respone model; flexural strength; prediction model

?基 金 項目： 成 都 市 科 技 局 重 點 研 發 支 撐 計 劃  ( 2022 - YF05-01051 -SN) 四川交通職業技術學院科技項目  (2022-QN- KJ-05)

作者簡介： 王旭  ( 1997—) , 男 ，碩士。研究方向： 路基路 面工程。

通信作者： 楊征勛  (1982—) , 男，博士，教授 。研究方向： 無機非金屬材料。

收稿日期： 2023-03-19