Analysis of the Physicochemical and Mineralogical Properties of the Materials Used in the Preparation of Recoblocks

被引:5
|
作者
Neftali Rojas-Valencia, Maria [1 ]
Alberto Lopez-Lopez, Jose [1 ]
Yeazul Fernandez-Rojas, Denise [1 ]
Manuel Gomez-Soberon, Jose [2 ]
Vaca-Mier, Mabel [3 ]
机构
[1] Univ Nacl Autonoma Mexico, Inst Engn Coordinat Environm Engn, Av Univ, Mexico City 3000, DF, Mexico
[2] Univ Politecn Cataluna, Dept Architecture Technol, Barcelona Sch Bldg Construct, Av Doctor Maranon 44-50, Barcelona 08028, Spain
[3] Metropolitan Autonomous Univ Azcapotzalco, Dept Energy, 180 San Pablo Ave, Mexico City 02200, DF, Mexico
关键词
excavation material; mucilage; construction waste; DEMOLITION WASTE; CONSTRUCTION; CONCRETE; GENERATION; BRICKS;
D O I
10.3390/ma13163626
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
The construction sector generates 14,000 t/d of construction waste in Mexico City, these materials do not have real applications and end up accumulating in landfills. This work, the objective of which was to analyze the physicochemical and mineralogical properties of soil and construction waste used in the manufacture of Recoblocks, is divided in five stages. First, the excavation material was submitted to field tests. Physical and chemical tests were then carried out on construction waste. Subsequently, the optimal mixture for making Recoblocks was determined. Next, Recoblocks were evaluated and compared with blocks made with water only, without mucilage ofOpuntia ficus,and finally a feasibility study was performed. The X-ray diffraction study showed the presence of plagioclase, minerals that improve bending resistance, hardness, durability, as well as resistance to stress in a material. Compared to blocks manufactured without mucilage, the use ofOpuntia ficusmucilage increased the compressive strength of the material by 59%, as well as the erodibility. Recoblocks are an environmentally friendly option because they are based on recycled materials, dried under the sun, which eliminates the use of brick oven. The production cost per unit is just USD 0.19, so it is a viable option as a building material.
引用
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页数:17
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