粉煤灰
粉煤灰
분매회
COAL ASH CHINA
2013年
5期
28-31
,共4页
再生混凝土%圆环%应力分析%变形
再生混凝土%圓環%應力分析%變形
재생혼응토%원배%응력분석%변형
recycled concrete%ring%stress analysis%deformation performance
运用弹性力学原理分析计算了混凝土圆环应力分布并采用圆环试验方法监测了掺有粉煤灰、矿粉再生混凝土收缩变形趋势。试验结果表明，圆环试验能给混凝土提供完全且均匀的约束，能合理评价混凝土抵抗自收缩和干燥收缩综合作用变形能力。再生混凝土的收缩变形大于普通混凝土。粉煤灰、矿粉掺合料能降低再生混凝土收缩变形趋势。
運用彈性力學原理分析計算瞭混凝土圓環應力分佈併採用圓環試驗方法鑑測瞭摻有粉煤灰、礦粉再生混凝土收縮變形趨勢。試驗結果錶明，圓環試驗能給混凝土提供完全且均勻的約束，能閤理評價混凝土牴抗自收縮和榦燥收縮綜閤作用變形能力。再生混凝土的收縮變形大于普通混凝土。粉煤灰、礦粉摻閤料能降低再生混凝土收縮變形趨勢。
운용탄성역학원리분석계산료혼응토원배응력분포병채용원배시험방법감측료참유분매회、광분재생혼응토수축변형추세。시험결과표명，원배시험능급혼응토제공완전차균균적약속，능합리평개혼응토저항자수축화간조수축종합작용변형능력。재생혼응토적수축변형대우보통혼응토。분매회、광분참합료능강저재생혼응토수축변형추세。
Stress distribution of concrete ring was calculated by using the principle of elastic mechanics. Ring test was used to monitor the shrinkage deformation trends of recycled concrete mixed with fly ash and mineral powder. Results show that the ring test would reasonably assess autogenous shrinkage and drying shrinkage deformation property of concrete by providing concrete a complete and uniform bound. The shrinkage deformation of recycled concrete is greater than that of ordinary concrete. Fly ash and mineral powder could significantly reduce the shrinkage deformation trends of recycled concrete.
