Paper Title:
Surface Modification for Porous Artificial Lightweight Aggregate and Mechanical Properties of the Resulting Concrete
  Abstract

This research is one part of preliminary work for integrated structural-functional energy storage concrete by using porous artificial lightweight aggregate and phase change material. Lightweight aggregate concrete (LWAC) has been applied more and more extensively in recent years, but high water absorption of porous artificial lightweight aggregate (LWA) is inconvenient for LWAC production. In order to improve LWA application, in this paper, two aspects of lightweight aggregate (LWA) study have been carried out, namely, a) LWA surface modification. The effects of different concentration of surface modifier on water absorption of modified LWA were studied. b) Mechanical properties of lightweight aggregate concrete made of the unmodified and modified LWAs Through comparing the water absorption of unmodified and modified LWAs, it can be known that the surface modification for LWA can reduce the water absorption obviously. The three kinds of lightweight concrete possess nearly same strength at 7-day and, at 28-day, the strength of LWAC using 1:20 modified LWA is highest and that of LWAC using 1:5 modified LWA is lowest. 28 days compressive strength of LWAC using 1:20 modified LWA could be up to 46.1MPa.

  Info
Periodical
Chapter
Chapter 7: Functional Materials
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
1302-1305
DOI
10.4028/www.scientific.net/AMM.117-119.1302
Citation
N. Liao, H. Z. Cui, "Surface Modification for Porous Artificial Lightweight Aggregate and Mechanical Properties of the Resulting Concrete", Applied Mechanics and Materials, Vols. 117-119, pp. 1302-1305, 2012
Online since
October 2011
Export
Price
$32.00
Share

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

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

Authors: Tao Fang Jia, Hua Wu Liu, Fan Jie Chu, Han Sun, Shu Wei Yang, Tian Yang Yang
Chapter 6: Engineering Materials and Functional Materials
Abstract:Chopped basalt fibers untreated and treated by silane coupling agent were used to modify cement sample, in order to reduce water absorption....
823
Authors: Šárka Keprdová, Jiří Bydžovský, Nikol Žižková
Chapter 5: Redevelopment of Concrete Structures
Abstract:The paper discusses the development and study of the properties of lightweight repair materials applicable to the re-profiling of lightweight...
135