混凝土
混凝土
혼응토
CONCRETE
2014年
8期
78-81,87
,共5页
苏益声%孟二从%陈宗平%陈朋朋
囌益聲%孟二從%陳宗平%陳朋朋
소익성%맹이종%진종평%진붕붕
再生卵石混凝土%抗压性能%试验研究%高温
再生卵石混凝土%抗壓性能%試驗研究%高溫
재생란석혼응토%항압성능%시험연구%고온
recycled pebble concrete%mechanical performance%experimental study%high temperature
为研究高温后再生卵石混凝土的抗压性能，完成了24个不同再生骨料取代率试件经不同高温后的单轴加载试验。研究结果表明：随着温度的不断升高，试件颜色逐渐向银灰色转变，表面逐渐出现裂缝、掉皮等现象；试件的峰值应力、峰值应变、弹性模量随着取代率的变化分别在10%、5%、15%的范围内波动；峰值应力及弹性模量随着温度的上升而逐渐下降，峰值应变随着温度的上升而逐渐上升；基于试验数据，拟合出了相关计算式，可为相关研究提供参考。
為研究高溫後再生卵石混凝土的抗壓性能，完成瞭24箇不同再生骨料取代率試件經不同高溫後的單軸加載試驗。研究結果錶明：隨著溫度的不斷升高，試件顏色逐漸嚮銀灰色轉變，錶麵逐漸齣現裂縫、掉皮等現象；試件的峰值應力、峰值應變、彈性模量隨著取代率的變化分彆在10%、5%、15%的範圍內波動；峰值應力及彈性模量隨著溫度的上升而逐漸下降，峰值應變隨著溫度的上升而逐漸上升；基于試驗數據，擬閤齣瞭相關計算式，可為相關研究提供參攷。
위연구고온후재생란석혼응토적항압성능，완성료24개불동재생골료취대솔시건경불동고온후적단축가재시험。연구결과표명：수착온도적불단승고，시건안색축점향은회색전변，표면축점출현렬봉、도피등현상；시건적봉치응력、봉치응변、탄성모량수착취대솔적변화분별재10%、5%、15%적범위내파동；봉치응력급탄성모량수착온도적상승이축점하강，봉치응변수착온도적상승이축점상승；기우시험수거，의합출료상관계산식，가위상관연구제공삼고。
To study the mechanical performance of recycled pebble concrete subjected to high temperature ,24 cylindrical specimens un-der uniaxial loading condition with different recycled aggregate replacement ratio after different high temperature were completed.The re-sults showed that with the increase of temperature,the color of specimens gradually turned to gray and the surface gradually appear cracks, peeling and other phenomena.The peak stress,peak strain and elastic modulus changed with the replacement ratio fluctuated in the range of 10%、5%and 15%.With the increase of temperature,the peak stress and elastic modulus gradually decreased and the peak strain gradually in-creased.Based on experimental data ,related calculation formulas are given,it can provide reference for related research.
