砂率对工业灰渣-陶粒混凝土性能的影响研究
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摘要
为研究砂率对工业灰渣-陶粒混凝土性能的影响,制作了9组不同砂率的混凝土试件,测得试件3 d、7 d、14 d、28 d的抗压强度,以及28 d的劈裂抗拉强度和碳化深度。研究结果表明:随着砂率的增加,工业灰渣-陶粒混凝土28 d的抗压强度逐渐提高,3 d、7 d、14 d的抗压强度则无明显规律;28 d的劈裂抗拉强度随着砂率的增加基本呈上升趋势,28 d的碳化深度在砂率为100%时发生了显著突变,其余的都接近砂率为0%时对应的碳化深度值。基于该材料的劈裂抗拉强度对数值与抗压强度对数值拟合结果,建立了其拉-压强度关系计算式。
To study the effect of sand ratio on properties of industrial ash-ceramsite concrete, 9 sets of concrete specimens with different sand ratios were made. The compressive strength of the test pieces 3 d, 7 d, 14 d, 28 d, and the splitting tensile strength and carbonization depth of 28 d were tested. The results show that the compressive strength of industrial ash-ceramic concrete 28 d gradually increases with the increase of sand rate. 3 d, 7 d, 14 d compressive strength has no obvious discipline. The splitting tensile strength of 28 d is basically increasing with the increase of sand rate. The depth of carbonization at 28 d showed a significant mutation at a sand ratio of 100%. The other carbonization depths are close to the corresponding carbonization depth values when the sand ratio is 0%. Based on the numerical results of the logarithmic tensile strength and the compressive strength, established the calculation formula of the tensile-compressive strength of the material.
To study the effect of sand ratio on properties of industrial ash-ceramsite concrete, 9 sets of concrete specimens with different sand ratios were made. The compressive strength of the test pieces 3 d, 7 d, 14 d, 28 d, and the splitting tensile strength and carbonization depth of 28 d were tested. The results show that the compressive strength of industrial ash-ceramic concrete 28 d gradually increases with the increase of sand rate. 3 d, 7 d, 14 d compressive strength has no obvious discipline. The splitting tensile strength of 28 d is basically increasing with the increase of sand rate. The depth of carbonization at 28 d showed a significant mutation at a sand ratio of 100%. The other carbonization depths are close to the corresponding carbonization depth values when the sand ratio is 0%. Based on the numerical results of the logarithmic tensile strength and the compressive strength, established the calculation formula of the tensile-compressive strength of the material.
引文
[1]王志伟,吴国友,李秋义.轻集料混凝土中轻集料上浮的试验研究[J].淮海工学院学报(自然科学版),2007(2):70-73.
[2]李远.水泥基材料早期水化过程与微观结构研究[D].武汉:武汉理工大学,2012.
[3]杨斌,盛彬,王珺卓,等.粉煤灰与矿渣在单掺和复掺情况下对混凝土强度的影响研究[J].中外公路,2017,37(3):212-215.
[4]王鹏.陶粒混凝土基本力学性能的试验研究[D].长沙:长沙理工大学,2008.
[5]高英力,程领,龙杰.不同矿物掺合料对轻骨料混凝土抗碳化性能的影响[J].长沙理工大学学报(自然科学版),2011,8(3):33-38.
[6]肖建庄,雷斌,袁飚.不同再生粗集料混凝土劈裂抗拉强度分布特征[J].建筑材料学报,2008,2(11):223-229.
[2]李远.水泥基材料早期水化过程与微观结构研究[D].武汉:武汉理工大学,2012.
[3]杨斌,盛彬,王珺卓,等.粉煤灰与矿渣在单掺和复掺情况下对混凝土强度的影响研究[J].中外公路,2017,37(3):212-215.
[4]王鹏.陶粒混凝土基本力学性能的试验研究[D].长沙:长沙理工大学,2008.
[5]高英力,程领,龙杰.不同矿物掺合料对轻骨料混凝土抗碳化性能的影响[J].长沙理工大学学报(自然科学版),2011,8(3):33-38.
[6]肖建庄,雷斌,袁飚.不同再生粗集料混凝土劈裂抗拉强度分布特征[J].建筑材料学报,2008,2(11):223-229.