本文關(guān)鍵詞： 再生混凝土 高溫?fù)p傷 孔結(jié)構(gòu)　出處：《硅酸鹽通報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：研究了再生骨料取代率對(duì)再生混凝土在模擬火災(zāi)溫度下的外觀形貌、抗壓強(qiáng)度、質(zhì)量及孔結(jié)構(gòu)的影響。結(jié)果表明:由于再生骨料取自建筑廢料,其骨料品質(zhì)較天然骨料有所降低,導(dǎo)致其暴露在高溫時(shí)出現(xiàn)密集裂縫,甚至骨料剝落。骨料取代率不大于40%和溫度低于400℃時(shí),再生混凝土仍能保持其力學(xué)強(qiáng)度且無(wú)質(zhì)量損失。當(dāng)溫度大于600℃時(shí),孔隙率顯著增加,細(xì)孔比例相對(duì)降低。
[Abstract]:The effects of recycled aggregate replacement ratio on the appearance, compressive strength, quality and pore structure of recycled concrete under simulated fire temperature were studied. The quality of the aggregate is lower than that of the natural aggregate, which leads to the appearance of dense cracks and even the exfoliation of the aggregate when exposed to high temperature. When the aggregate substitution rate is not greater than 40% and the temperature is lower than 400 鈩，

本文編號(hào)：1508503