自密實(shí)爐渣混凝土性能試驗(yàn)研究
發(fā)布時(shí)間:2018-03-28 19:25
本文選題:爐渣混凝土 切入點(diǎn):水膠比 出處:《新型建筑材料》2017年10期
【摘要】:采用單因素試驗(yàn)方法研究水膠比及粉煤灰取代率對(duì)自密實(shí)爐渣混凝土的工作性能、表觀密度和力學(xué)性能的影響。結(jié)果表明:以爐渣作為骨料配制出的自密實(shí)輕骨料混凝土工作性能符合JGJ/T 283—2012的要求,粉煤灰取代率對(duì)自密實(shí)爐渣混凝土各項(xiàng)性能影響相比水膠比變化更為顯著。自密實(shí)爐渣混凝土的最優(yōu)水膠比為0.42,粉煤灰取代率為70.0%,此時(shí)混凝土表觀密度為1645.5 kg/m~3,28 d抗壓、抗折強(qiáng)度分別為16.3、2.2 MPa。
[Abstract]:The performance of self-compacting slag concrete by water-binder ratio and fly ash replacement ratio was studied by single factor test method. The effect of apparent density and mechanical properties. The results show that the self-compacting lightweight aggregate concrete made of slag as aggregate meets the requirements of JGJ/T 283-2012. The effect of the replacement ratio of fly ash on the properties of self-compacting slag concrete is more significant than that of water-binder ratio. The optimum water-binder ratio of self-compacting slag concrete is 0.42, and the replacement ratio of fly ash is 70.0.The apparent density of concrete is 1645.5 kg / m ~ (-1) ~ 3 ~ (28) d. The flexural strength was 16.3 and 2.2 MPa, respectively.
【作者單位】: 石河子大學(xué)水利建筑工程學(xué)院;
【基金】:新疆生產(chǎn)建設(shè)兵團(tuán)工業(yè)及高新技術(shù)科技攻關(guān)與成果轉(zhuǎn)化項(xiàng)目(2015AB026) 新疆生產(chǎn)建設(shè)兵團(tuán)重大科技項(xiàng)目(2016JB02)
【分類號(hào)】:TU528
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本文編號(hào):1677741
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