基于正交设计方法的塑性混凝土优化配合比试验研究  

Experimental Study on Optimal Mix Proportion of Plastic Concrete[HJ69x]Based on Orthogonal Design Method

作　　者：胡瀚尹 HU Hanyin(CHN Energy Dadu River Basin Hydropower Development Co.,Ltd.,Chengdu Sichuan 610041)

机构地区：[1]国能大渡河流域水电开发有限公司,四川成都610041

出　　处：《四川水力发电》2024年第2期159-162,共4页Sichuan Hydropower

摘　　要：笔者利用正交试验法进行塑性混凝土试验方案设计,并结合SPSS软件对试验结果进行变异数分析和Duncan多重比较,以此探讨了引气剂掺量、膨润土用量、水胶比三种因素对其性能评价指标的影响,找出满足各设计要求的最佳配合比。结果表明:对静力抗压弹模和抗压强度而言,因素的主次顺序是膨润土掺量、水胶比、引气剂掺量;膨润土用量、水胶比及引气剂掺量的提高对弹性有利,对抗压强度不利。对渗透系数来说,主次排序是水胶比、引气剂掺量、膨润土掺量;膨润土用量及水胶比的增加对抗渗性不利,引气剂掺量的增加对抗渗性有利。该方法找出引气剂掺量0.02%、膨润土用量60%、水胶比0.95的相对最佳配比,并通过了验证。In this paper,the orthogonal test method is used to design the plastic concrete test scheme,and the SPSS software is used to analyze the variance of the test results and Duncan's multiple comparison to explore the influence of the three factors of the air-entraining agent content,the amount of bentonite and the water-binder ratio on the performance,and to find the optimal mix ratio meeting the design requirements.The results show that for the static compression modulus and compressive strength,the order of priority of the factors is the amount of bentonite,the water-binder ratio,and the air entraining agent content;The increase of bentonite content,water-binder ratio and air-entraining agent content is beneficial to elasticity,but unfavorable to compressive strength.For the permeability coefficient,the order of priority of is the water-binder ratio,the air-entraining agent content and the bentonite content;The increase of the amount of bentonite and the water-binder ratio is unfavorable to the anti-permeability,while the increase of the amount of air-entraining agent is favorable to the anti-permeability.This method finds out the relative optimum ratio of 0.02%air-entraining agent,60%bentonite and 0.95 water-binder ratio,and passes the verification.

关 键 词：塑性混凝土 正交试验 变异数分析 Duncan多重比较 相对最佳配合比 

分 类 号：A715[哲学宗教—马克思主义哲学]