Experimental investigation on compression resistance of bio-bricks

被引：22

作者：

Li, Yang ^{[1
]}

Wen, Kejun ^{[1
]}

Li, Lin ^{[2
]}

Huang, Wei ^{[3
]}

Bu, Changming ^{[3
]}

Amini, Farshad ^{[1
]}

机构：

[1] Jackson State Univ, Dept Civil & Environm Engn, Jackson, MS 39217 USA

[2] Tennessee State Univ, Dept Civil & Architectural Engn, Nashville, TN 37209 USA

[3] Chongqing Univ Sci & Technol, Sch Civil Engn & Architecture, Chongqing 401331, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 265卷

基金：

美国国家科学基金会;

关键词：

Bio-bricks; MICP; Brick compression test; Fiber; Coarse sand; Clay; INDUCED CARBONATE PRECIPITATION; SOIL; BIOMINERALIZATION; CEMENTATION; REMEDIATION; IMPROVEMENT; REMOVAL; UREA;

D O I：

10.1016/j.conbuildmat.2020.120751

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The cementation of sand into bio-brick materials through microbial induced calcium carbonate precipitation (MICP) is a novel technology with broad applications. The compression strength of the MICP treated bio-bricks was tested through brick compression tests. Additives including discrete randomly distributed fiber, coarse sand, and clay and multiple treatments were applied to reinforce the compression strength of bio-bricks. Results concluded that the increase of compression strength with treatment times for all bio-bricks seems to be intuitive - the more treatment times, the higher compression strength. The addition of synthetic and natural fibers can result in the increase of compression strength of the bio-bricks by 50-70%. The optimum clay content of strengthening brick compression strength is 2%. The contribution of void space from additional coarse sand on brick compression strength is insignificant. The water absorptions of bio-bricks ranged from 10.16% to 17.89%, which is comparable with that of traditional red bricks. Moreover, the overall results from FTIR, XRD, and SEM demonstrated the process of MICP and identified the formation of vaterite and calcite in the bio-bricks. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：7

共 44 条

[1] Biogenic treatment improves the durability and remediates the cracks of concrete structures [J].

Achal, Varenyam ;

Mukerjee, Abhijeet ;

Reddy, M. Sudhakara .

CONSTRUCTION AND BUILDING MATERIALS, 2013, 48 :1-5

[2] Biomineralization based remediation of As(III) contaminated soil by Sporosarcina ginsengisoli [J].

Achal, Varenyam ;

Pan, Xiangliang ;

Fu, Qinglong ;

Zhang, Daoyong .

JOURNAL OF HAZARDOUS MATERIALS, 2012, 201 :178-184

[3] Surface treatment of concrete bricks using calcium carbonate precipitation [J].

Amidi, Shahrooz ;

Wang, Jialai .

CONSTRUCTION AND BUILDING MATERIALS, 2015, 80 :273-278

[4]

[Anonymous], 2006, Geological and geotechnical engineering in the new millennium: opportunities for research and technological innovation

[5]

[Anonymous], 2002, C6702 ASTM

[6]

Avdeev V.A., 2020, J CRITICAL REV, V7, P340

[7] Bio-bricks: Biologically cemented sandstone bricks [J].

Bernardi, D. ;

DeJong, J. T. ;

Montoya, B. M. ;

Martinez, B. C. .

CONSTRUCTION AND BUILDING MATERIALS, 2014, 55 :462-469

[8] Development of bio-cemented constructional materials through microbial induced calcite precipitation [J].

Bu, Changming ;

Wen, Kejun ;

Liu, Shihui ;

Ogbonnaya, Ubani ;

Li, Lin .

MATERIALS AND STRUCTURES, 2018, 51 (01)

[9]

Burdzieva O.G., 2019, 8 SCI TECHN C CONT I

[10] Introduction of Microbial Biopolymers in Soil Treatment for Future Environmentally-Friendly and Sustainable Geotechnical Engineering [J].

Chang, Ilhan ;

Im, Jooyoung ;

Cho, Gye-Chun .

SUSTAINABILITY, 2016, 8 (03)

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