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| 摘要: |
| 利用裹浆厚度设计混凝土配比的方法,以致密配比逻辑为基础,配合富勒曲线,求解了各尺寸粒料之混合比例;估算了各粒料之总表面积及裹浆厚度,以计算总浆体体积;根据总浆体体积,代回致密配比逻辑,求解了各混凝土组成材料用量.这种方法可修正原致密配比逻辑中填塞堆积试验及放大浆量Vp=nVv之设计方式,对混凝土性质做了更精确的定量分析. |
| 关键词: 混凝土 浆体体积 粒料 裹浆厚度 富勒曲线 |
| DOI： |
| 分类号:TU528.01 |
| 基金项目: |
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| New Approach to Design Concrete Mix Proportions by Coating Thickness of Aggregates |
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CAI Zhi-da ZHANG Jian-zhi YE Shu-tong LI Long-sheng HUANG Zhao-long
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| Abstract: |
| Total paste volume of concrete consists of the void between aggregates(V_V) and the lubricating paste for workability i.e.the surface area of aggregates(S) multiplied by coating thickness(t).So the total paste volume of concrete can be described as V_P=V_V+St.This study presents a new approach to design concrete mix proportions by coating thickness of aggregates.This approach is on the basis of densified mixture design algorithm(DMDA) and adopts the Fuller's curve to deduce a new method to design concrete m... |
| Key words: concrete paste volume aggregates coating thickness Fuller's curve |
