Effect of Slag Content on Physical and Mechanical Properties of Lightweight Aggregate Concrete Small Hollow Blocks

Abstract:

Article Preview

This paper introduced a method of saving materials and energy through making small hollow blocks with the slag admixture in the lightweight aggregate concrete. Through orthogonal design, this paper took slag content, water binder ratio and admixture dosage into consideration and focused on influence of slag content on the physical and mechanical properties of lightweight aggregate concrete small hollow blocks. The results show that: when water binder ratio ,admixture dosage and curing system keep a fixed level, during the range of slag content 30%-40%, with the increase in slag content, the compressive and bending strength of small hollow block increased first and then decreased; water content and absorption and relative water moisture content decreased first and then increased; frost resistance increased then decreased; softening coefficient first increased and then decreased. When the slag content is 35%, the physical and mechanical properties of lightweight aggregate concrete small hollow block are the best, and all the indexes of physical and mechanical properties can meet the standard requirements non-bearing lightweight aggregate concrete hollow block. The curing system significantly affected the strength of the lightweight aggregate concrete small hollow block, and the block strength cured under the standard condition was higher than those under natural condition.

Info:

Periodical:

Advanced Materials Research (Volumes 374-377)

Edited by:

Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du

Pages:

1477-1480

DOI:

10.4028/www.scientific.net/AMR.374-377.1477

Citation:

J. Liu et al., "Effect of Slag Content on Physical and Mechanical Properties of Lightweight Aggregate Concrete Small Hollow Blocks", Advanced Materials Research, Vols. 374-377, pp. 1477-1480, 2012

Online since:

October 2011

Export:

Price:

$35.00

[1] Wu Zhongwei, Liao huizhen. High performance concrete[M], Beijing: China Railway Publish House, 1999, 40-60.

[2] Gong Luoshu. Technology Development and Prospects on Lightweight Aggregate Concrete[J], Concrete, 2002, (2) : 13-15.

[3] Jiang Ming. Application status and development prospects of China's building blocks[J], Journal of Anhui Institute of Architecture & Industry(Natural Science), 1998(6).

[4] Guo Jianing. Mechanical properties of high-strength lightweight aggregate concrete and its require on aggregate[J], Heilongjiang Science and Technology of Water Conservancy, 2001, (1): 71-72.

[5] Ding Jiandan, Guo Yushun, Kaoru Kimura. State-of-the-art of the application of structural lightweight aggregate concrete in foreign countries[J], Concrete, 2002, (12) : 23-26.

[6] Yang Dingyi, Zhao Ling. Compound Concrete Hollow Blocks and Energy Saving for Building[J], Industrial Construction, 1999(12).

[7] Copeland L. E. ,Kantro D. L. ,Chemistry of Hydration of Portland cement at Ordinary temperature,the Chemistry of Cements,1964,Vol. 1.

In order to see related information, you need to Login.