建材世界
建材世界
건재세계
THE WORLD OF BUILDING MATERIALS
2015年
2期
28-30,34
,共4页
砖含量%再生混凝土%再生骨料%力学性能
磚含量%再生混凝土%再生骨料%力學性能
전함량%재생혼응토%재생골료%역학성능
brick content%recycled concrete%recycled aggregate%mechanical property
该文使用普通天然骨料、经水洗再生骨料和未经水洗处理的再生骨料制备再生混凝土，分别测定其抗压强度、抗弯强度和弹性模量。试验结果表明，再生混凝土的抗弯强度在低水胶比时与一般混凝土有较大差距；但经由水洗过程，可改善再生骨料与水泥浆间的握裹情况，从而大幅提高其抗弯强度；同时，水灰比变化或使用不同再生骨材对混凝土弹性模量的影响并不明显。
該文使用普通天然骨料、經水洗再生骨料和未經水洗處理的再生骨料製備再生混凝土，分彆測定其抗壓彊度、抗彎彊度和彈性模量。試驗結果錶明，再生混凝土的抗彎彊度在低水膠比時與一般混凝土有較大差距；但經由水洗過程，可改善再生骨料與水泥漿間的握裹情況，從而大幅提高其抗彎彊度；同時，水灰比變化或使用不同再生骨材對混凝土彈性模量的影響併不明顯。
해문사용보통천연골료、경수세재생골료화미경수세처리적재생골료제비재생혼응토，분별측정기항압강도、항만강도화탄성모량。시험결과표명，재생혼응토적항만강도재저수효비시여일반혼응토유교대차거；단경유수세과정，가개선재생골료여수니장간적악과정황，종이대폭제고기항만강도；동시，수회비변화혹사용불동재생골재대혼응토탄성모량적영향병불명현。
This paper adopts the common natural aggregates,water washed recycled aggregates and unwashed recy-cled aggregates to prepare the recycled concrete,and then respectively measure its compressive strength,flexure strength and elasticity modulus.The test shows that there is greater difference in the flexure strength between the re-cycled concrete and common concrete.But the washing process can improve the bond situation between the recycled aggregates and cement paste and hence greatly improve the flexure strength value,the influence of the water cement ratio change or the different recycled aggregates on the modulus of elasticity of concrete is not so obvious.
