【摘要】 定量研究了天然和再生骨料强度、实际水灰比和计算水灰比对混凝土抗压强度的影响。试验结果表明,混凝土抗压强度不仅与水灰比密切相关,而且与骨料压碎指标有关。通过进一步的分析,揭示了混凝土抗压强度与灰水比和骨料压碎指标之间良好线性相关性,并建立起天然与再生骨料混凝土的Bolomey统一公式。更多还原

【Abstract】 The effects of the strength of natural and recycled aggregate,practical water-to-cement ratio and nominal water-to-cement ratio on the compressive strength of concrete are studied in a quantitative manner.Experimental results show that the compressive strength of concrete is closely related not only to the water-to-cement ratio,but also to the crushing value of aggregate.Through further analysis,it is found that a good linear correlation between the compressive strength of concrete and the cement-to-water ratio and the crushing value of aggregate exists and a unified Bolomey’s formula is established for concrete made with both natural and recycled aggregate.更多还原