[1]王振军..矿物掺合料对大流动性轻混凝土拌和物性能的影响[J].郑州大学学报(工学版),2010,31(02):0.[doi:10.3969/j.issn.1671-6833.2010.02.010]
　WANG Zhenjun..Effect of mineral admixtures on properties of high-flow light concrete mixtures[J].Journal of Zhengzhou University (Engineering Science),2010,31(02):0.[doi:10.3969/j.issn.1671-6833.2010.02.010]

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矿物掺合料对大流动性轻混凝土拌和物性能的影响()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

31卷

期数:

2010年02期

页码:

0

栏目:

出版日期:

2010-02-02

文章信息/Info

Title:

Effect of mineral admixtures on properties of high-flow light concrete mixtures

作者:

王振军.

长安大学,材料学院,陕西,西安,710061;西安建筑科技大学,建筑材料研究所,陕西,西安,710055

Author(s):

WANG Zhenjun.

关键词:

大流动性轻混凝土;  矿物掺合料;  拌和物;  性能

Keywords:

Large fluidity light concrete;  mineral admixtures;  mixture;  Performance

DOI:

10.3969/j.issn.1671-6833.2010.02.010

文献标志码:

A

摘要:

针对轻混凝土拌和物在大流动性条件下,易于分层而导致工作性不良的现象,采用L-800混凝土拌和物流动性能测定仪,结合混凝土拌和物性能测定方法,研究了粉煤灰和硅灰等矿物掺合料对大流动性轻混凝土(HFLC)拌和物在不同时间间隔时流过40 cm距离的流动时间t(40.T)、坍落度和扩展度等工作性能的影响.结果表明,掺加矿物掺合料是保证HFLC拌和物具有较好性能的关键因素,Ⅰ级粉煤灰和硅灰的最佳掺量分别为水泥总用量的30%和2%.

Abstract:

Aiming at the phenomenon that light concrete mix is easy to stratify under the condition of high fluidity, resulting in poor workability, the effects of L-800 concrete mix flow performance tester combined with concrete mix performance determination method were used to study the effects of fly ash and silica ash and other mineral admixtures on the flow time t(40.T), slump and expansion of large fluidity light concrete (HFLC) mixture flowing over a distance of 40 cm at different time intervals. The results show that the addition of mineral admixtures is the key factor to ensure the good performance of the HFLC mixture, and the optimal content of grade I fly ash and silica ash is 30% and 2% of the total cement dosage, respectively.

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