Mechanical Behavior of Masonry Mortars Made with Recycled Mortar Aggregate

被引：18

作者：

Sebastian Mora-Ortiz, Rene ^{[1
]}

Munguia-Balvanera, Emmanuel ^{[1
]}

Alberto Diaz, Sergio ^{[1
]}

Magana-Hernandez, Francisco ^{[1
]}

Del Angel-Meraz, Ebelia ^{[1
]}

Bolaina-Juarez, Alvaro ^{[1
]}

机构：

[1] Univ Juarez Autonoma Tabasco, Div Acad Ingn & Arquitectura DAIA UJAT, Carretera Cunduacan Jalpa Mendez Km 1, Cunduacan 86690, Tabasco, Mexico

来源：

MATERIALS | 2020年 / 13卷 / 10期

关键词：

construction and demolition waste; recycled fine aggregate; mortars; sustainable construction; recycled aggregates; DEMOLITION WASTE; FINE AGGREGATE; CONCRETE; CONSTRUCTION; PERFORMANCE;

D O I：

10.3390/ma13102373

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Recycling is an important habit to avoid waste. This paper evaluates the performance of masonry mortar, elaborated by replacing natural sand with recycled fine aggregate (RFA) obtained from mortar. Five families of mixtures were prepared with different replacement proportions: 20%, 40%, 60%, and 100%. A 1:4 volumetric cement-to-aggregate ratio was used for all mixtures by experimentally adjusting the amount of water to achieve the same consistency of 175 +/- 5 mm. The effects of the following procedures were analyzed: (1) the use of a deconstruction technique to collect the RFA, (2) pre-wetting of the aggregates, and (3) the use of a commercial plasticizer. Experimental results show that it is possible to use this type of recycled fine aggregate as a substitute for natural sand by up to 60% in the manufacture of masonry mortar without significantly affecting its properties.

引用

页数：14

共 63 条

[1] Construction and Demolition Waste as Recycled Aggregates in Alkali-Activated Concretes [J].