Effect of activated coal waste and treated Pinus fibers on the physico-mechanical properties and durability of fibercement composites

被引：2

作者：

Mejia-Ballesteros, Julian Eduardo ^{[1
,2
]}

Rodier, Loic ^{[1
,3
]}

Filomeno, Rafael ^{[1
]}

Savastano Jr, Holmer ^{[1
]}

Fiorelli, Juliano ^{[1
]}

Rojas, Moises Frias ^{[4
]}

机构：

[1] Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Biosyst Engn, BR-13630000 Pirassununga, Brazil

[2] Natl Open & Distance Univ, Sch Agr Livestock & Environm Sci, Palmira 763532, Colombia

[3] Fed Univ Latin Amer Integrat, Dept Mat Engn, BR-85866000 Foz Do Iguacu, Brazil

[4] Eduardo Torroja Inst Construct Sci IETcc CSIC, Madrid 28033, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 392卷

关键词：

Thermal treatment; Cellulose pulp; Activated coal mining waste; Eco-friendly blended cement; Vegetal fiber reinforcement; Composite properties; BLENDED CEMENT MATRICES; RICE HUSK ASH; PORTLAND-CEMENT; REINFORCED CEMENT; MINING WASTE; MECHANICAL-PROPERTIES; SUGARCANE BAGASSE; VEGETABLE FIBERS; LIMESTONE POWDER; BINARY CEMENTS;

D O I：

10.1016/j.conbuildmat.2023.132038

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The constant environmental and social pressure on the search for alternative and clean technologies has strongly influenced the construction industry, which is considered as one of the main contributors to global warming due to the emission of carbon dioxide (CO2). The objective of this study was to evaluate the effect of partial replacement of cement by activated coal waste on cement-based composites reinforced by unbleached pine pulps. The results showed that the hornification treatment reduces the water absorption capacity and increases the dimensional stability of the cellulosic pulp. In addition, the thermal treatment preserves the original chemical composition of the vegetable pulp. Moreover, the partial replacement of cement by activated coal waste (ACW) increased the mechanical performance. The results of thermogravimetric analysis showed that composites with ACW present a decrease of the calcium hydroxide content compared to composites containing limestone. After accelerated aging tests, a decrease in the reinforcement capacity of the fiber and densification of the material is observed. However, composites with treated pulps and activated coal waste showed higher mechanical prop-erties and a greater durability. According to the results, the combination of the hornification treatment and the partial replacement of cement by ACW can be used to improve the eco-efficiency of the fiber cement industry. The combination of both approaches allows to a reduction the carbon dioxide emissions (reduction of cement consumption) and an increase of the durability of the material.

引用

页数：14

共 102 条

[11] A case study of the life cycle impact of limestone quarrying on the environment [J].

Bendouma, Sabrina ;

Serradj, Tayeb ;

Vapur, Huseyin .

INTERNATIONAL JOURNAL OF GLOBAL WARMING, 2020, 22 (04) :432-447

[12]

Benzer H., 2006, Advances in Comminution, P169

[13] Electrical resistivity measurements in steel fibre reinforced cementitious materials [J].

Berrocal, Carlos G. ;

Hornbostel, Karla ;

Geiker, Mette R. ;

Lofgren, Ingemar ;

Lundgren, Karin ;

Bekas, Dimitrios G. .

CEMENT & CONCRETE COMPOSITES, 2018, 89 :216-229

[14] Durability of cementitious materials reinforced with various Kraft pulp fibers [J].

Booya, Emad ;

Ghaednia, Hossein ;

Das, Sreekanta ;

Pande, Harshad .

CONSTRUCTION AND BUILDING MATERIALS, 2018, 191 :1191-1200

[15] Reuse of coal mining waste to lengthen the service life of cementitious matrices [J].

Caneda-Martinez, Laura ;

Sanchez, Javier ;

Medina, Cesar ;

Isabel Sanchez de Rojas, M. ;

Torres, Julio ;

Frias, Moises .

CEMENT & CONCRETE COMPOSITES, 2019, 99 :72-79

[16] Mechanical properties, durability, and life-cycle assessment of self-consolidating concrete mixtures made with blended portland cements containing fly ash and limestone powder [J].

Celik, Kemal ;

Meral, Cagla ;

Gursel, A. Petek ;

Mehta, P. Kumar ;

Horvath, Arpad ;

Monteiro, Paulo J. M. .

CEMENT & CONCRETE COMPOSITES, 2015, 56 :59-72

[17] The hornification of vegetable fibers to improve the durability of cement mortar composites [J].

Claramunt, Josep ;

Ardanuy, Monica ;

Garcia-Hortal, Jose Antonio ;

Toledo Filho, Romildo Dias .

CEMENT & CONCRETE COMPOSITES, 2011, 33 (05) :586-595

[18] White Ordinary Portland Cement blended with superfine steel dust with high zinc oxide contents [J].

Colorado, Henry A. ;

Garcia, Edwin ;

Buchely, M. F. .

CONSTRUCTION AND BUILDING MATERIALS, 2016, 112 :816-824

[19] Potential of bamboo organosolv pulp as a reinforcing element in fiber-cement materials [J].

Correia, Viviane da Costa ;

Santos, Sergio Francisco ;

Marmol, Gonzalo ;

da Silva Curvelo, Antonio Aprigio ;

Savastano, Holmer, Jr. .

CONSTRUCTION AND BUILDING MATERIALS, 2014, 72 :65-71

[20] Reduction in CO2 emissions during production of cement, with partial replacement of traditional raw materials by civil construction waste (CCW) [J].

Costa, F. N. ;

Ribeiro, D. V. .

JOURNAL OF CLEANER PRODUCTION, 2020, 276

← 1 2 3 4 5 6 7 8 9 10 →