[1]王德奎、何仕、庄金平、林晗绯.橡胶自密实混凝土多龄期抗压强度试验研究[J].福建工程学院学报,2021,19(01):51-55.[doi:10.3969/j.issn.1672-4348.2021.01.009]
　WANG Dekui,HE Shi,ZHUANG Jinping,et al.Experimental study on compressive strength of rubber self-compacting concrete at different curing ages[J].Journal of FuJian University of Technology,2021,19(01):51-55.[doi:10.3969/j.issn.1672-4348.2021.01.009]
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橡胶自密实混凝土多龄期抗压强度试验研究()
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《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第19卷
期数:
2021年01期
页码:
51-55
栏目:
出版日期:
2021-02-25

文章信息/Info

Title:
Experimental study on compressive strength of rubber self-compacting concrete at different curing ages
作者:
王德奎、何仕、庄金平、林晗绯
福建工程学院土木学院 闽台合作土木工程技术福建省高校工程研究中心
Author(s):
WANG Dekui;  HE Shi;  ZHUANG Jinping;  LIN Hanfei
Fujian-Taiwan Cooperative Institute of Civil Engineering Technology in Universities of Fujian Province
关键词:
橡胶自密实混凝土; 粒径; 掺量; 龄期; 抗压强度
Keywords:
rubber self-compacting concrete;  particle size;  dosage;  curing ages;  compressive strength
分类号:
TU528.0
DOI:
10.3969/j.issn.1672-4348.2021.01.009
文献标志码:
A
摘要:
浇筑了13批次共123个标准试块分别进行7、28、60、90d龄期的抗压试验。试验结果表明:橡胶的掺入改善了自密实混凝土脆性破坏形态，降低了各龄期强度，同掺量下掺橡胶粉强度最低，掺1~2mm橡胶颗粒的强度最大；7d龄期强度可达60d龄期强度的65%~80%；橡胶掺量不大于30%的试件，60d龄期强度已经趋于稳定，橡胶颗粒掺量40%的试件28d龄期强度已趋于稳定；拟合了橡胶粒径、掺量与强度的预测公式，7d龄期与后期强度的经验公式，与试验结果对比吻合较好。
Abstract:
The compressive tests of the RSCC cured for 7, 28, 60 and 90 days were carried out, in which 13 batches of 123 standard test blocks were poured respectively. Results show that the addition of rubber can improve the brittle failure mode of SCC. The compressive strength of RSCC at different curing ages decreases with the addition of rubber powder, and the compressive strength of RSCC added with rubber powder is the lowest compared with that of the RSCC added with the same amount of rubber particles.In addition, the compressive strength of RSCC with the addition of rubber particles with the size of 1~2 mm is the highest.The compressive strength of RSCC cured for 7 days can reach 65%~80% of that of RSCC cured for 60 days. When the curing period exceeds 60 days, the compressive strength of RSCC with a rubber dosage of no more than 30% tends to be stable. When the curing period exceeds 28 days, the compressive strength of RSCC with a 40% rubber dosage tends to be stable. The prediction formulas of the compressive strength affected by rubber particle size and dosage were fitted, and the empirical formula of RSCC cured for 7 or more days were in good agreement with the experimental results.

参考文献/References:

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更新日期/Last Update: 2021-02-25