价值工程
價值工程
개치공정
VALUE ENGINEERING
2015年
14期
49-50,51
,共3页
再生骨料%再生混凝土%配合比设计
再生骨料%再生混凝土%配閤比設計
재생골료%재생혼응토%배합비설계
recycled aggregates%recycled concrete%design of mix proportion
再生骨料与天然骨料在物理和力学性能方面存在较大差异，前者所配制成的再生混凝土抗压强度—灰水比之间是否存在线性关系，需要试验进行验证。本文在再生粗骨料取代率（质量分数)分别为0%、50%和100%时，保持再生混凝土工作性能基本一致的条件下，进行15组混凝土配合比试验。试验结果表明再生混凝土抗压强度-灰水比之间大致成线性关系，进而提出再生混凝土强度计算公式。
再生骨料與天然骨料在物理和力學性能方麵存在較大差異，前者所配製成的再生混凝土抗壓彊度—灰水比之間是否存在線性關繫，需要試驗進行驗證。本文在再生粗骨料取代率（質量分數)分彆為0%、50%和100%時，保持再生混凝土工作性能基本一緻的條件下，進行15組混凝土配閤比試驗。試驗結果錶明再生混凝土抗壓彊度-灰水比之間大緻成線性關繫，進而提齣再生混凝土彊度計算公式。
재생골료여천연골료재물리화역학성능방면존재교대차이，전자소배제성적재생혼응토항압강도—회수비지간시부존재선성관계，수요시험진행험증。본문재재생조골료취대솔（질량분수)분별위0%、50%화100%시，보지재생혼응토공작성능기본일치적조건하，진행15조혼응토배합비시험。시험결과표명재생혼응토항압강도-회수비지간대치성선성관계，진이제출재생혼응토강도계산공식。
Recycled aggregate and natural aggregate have large differences in terms of physical and mechanical properties. Whether there is a linear relationship between the compressive strength and cement-water ratio of the recycled concrete made up by the recycled aggregate needs to be verified by tests. Under the condition that the recycled coarse aggregate replacement ratio (mass fraction) are 0%, 50%and 0%respectively, and the recycled concrete workability are basically identical, 15 groups of concrete mix ratio tests are carried out. The results show that the compressive strength and cement-water ratio of the recycled concrete are approximately in linear relationship, and then the recycled concrete strength formula is put forward.
