Environmental impact assessment of wood bio-concretes: Evaluation of the influence of different supplementary cementitious materials

被引：34

作者：

Caldas, Lucas Rosse ^{[1
,4
]}

Da Gloria, M'hamed Yassin R. ^{[1
]}

Pittau, Francesco ^{[2
,3
]}

Andreola, Vanessa Maria ^{[1
]}

Habert, Guillaume ^{[2
]}

Toledo Filho, Romildo D. ^{[1
]}

机构：

[1] Univ Fed Rio de Janeiro, Civil Engn Program, COPPE, BR-21941972 Rio De Janeiro, RJ, Brazil

[2] Swiss Fed Inst Technol, Inst Construct & Infrastruct Management, Stefano Franscini Pl 5, CH-8093 Zurich, Switzerland

[3] Politecn Milan, Architecture Built Environm & Construct Engn ABC, Via Ponzio 31, I-20133 Milan, Italy

[4] Univ Fed Rio de Janeiro UFRJ, Fac Arquitetura & Urbanismo FAU, BR-21941901 Rio De Janeiro, RJ, Brazil

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 268卷

关键词：

LCA; Climate change; Wood shavings; Metakaolin; Calcination; Fly ash; LIFE-CYCLE ASSESSMENT; FLY-ASH; THERMAL-CONDUCTIVITY; BUILDING-MATERIALS; ASSESSMENT LCA; ENERGY; CARBON; IMPROVEMENT; CHALLENGES; MOISTURE;

D O I：

10.1016/j.conbuildmat.2020.121146

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study evaluates the environmental impacts of workable wood bio-concretes (WBC). The WBC is composed of wood shavings, Portland cement (CEM), and two Supplementary Cementitious Materials (SCMs): metakaolin (MK) and fly ash (FA). A Life Cycle Assessment (LCA) was performed on seven WBC mixtures containing different contents of SCMs. When the compressive strength was used as a functional unit, the mixture containing 40% MK and 10% FA achieved the lowest values in most impact categories. We concluded that the CEM replacement by SCMs is a promising strategy to reduce the environmental impacts of the WBC, especially the climate change impact. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：13

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