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- Title
Analysis of the Physicochemical and Mineralogical Properties of the Materials Used in the Preparation of Recoblocks.
- Authors
Rojas-Valencia, María Neftalí; Lopez-López, José Alberto; Fernández-Rojas, Denise Yeazul; Gómez-Soberón, José Manuel; Vaca-Mier, Mabel
- Abstract
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 of Opuntia 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 of Opuntia ficus mucilage 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.
- Subjects
MEXICO City (Mexico); MECHANICAL properties of condensed matter; MUCILAGE; CHEMICAL testing; STRENGTH of materials; COMPRESSIVE strength
- Publication
Materials (1996-1944), 2020, Vol 13, Issue 16, p3626
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma13163626