An overview on the potential of geopolymers for concrete infrastructure rehabilitation

被引：108

作者：

Pacheco-Torgal, F. ^{[1
]}

Abdollahnejad, Z. ^{[1
]}

Miraldo, S. ^{[2
]}

Baklouti, S. ^{[3
]}

Ding, Y. ^{[4
]}

机构：

[1] Univ Minho, C TAC Res Ctr, Guimaraes, Portugal

[2] Univ Aveiro, CICECO, P-3800 Aveiro, Portugal

[3] Univ Sfax, Sfax, Tunisia

[4] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 36卷

关键词：

Concrete structures; Sealers; Patch repair; FRP strengthening; Concrete pipes; Trenchless rehabilitation; Geopolymers; CALCIUM SILICATE HYDRATE; LIFE-CYCLE; FLY-ASH; MICROSTRUCTURE; TEMPERATURE; DURABILITY; REPAIR; BINDER; WATER; GEL;

D O I：

10.1016/j.conbuildmat.2012.07.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Infrastructure rehabilitation represents a multitrillion dollar opportunity for the construction industry. In USA alone the rehabilitation needs are estimated to exceed 1.6 trillion dollars over the next 5 years. Since the majority of the existent infrastructures are concrete based this means that concrete infrastructure rehabilitation is a hot issue to be dealt with. Besides the sooner concrete deterioration is tackled the lower are the rehabilitation costs. This paper provides a literature review on concrete repair materials, highlighting the current problems face by them. It covers concrete surface treatments, patch repair and FRP strengthening. The case of trenchless rehabilitation of concrete sewage pipelines is also discussed. The potential of geopolymers to overcome those limitations is analyzed. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1053 / 1058

页数：6

共 57 条

[1] Effect of temperature on RC elements strengthened with CFRP [J].