Hygrothermal properties of soil–cement construction materials

2021 ◽  
Vol 313 ◽  
pp. 125518
Author(s):  
Adriana Belén Costantini Romero ◽  
Franco Matias Francisca ◽  
Ignacio Giomi
2017 ◽  
Vol 29 (3) ◽  
pp. 04016225 ◽  
Author(s):  
Diego Alejandro Gutiérrez-Orrego ◽  
Edwin Fabián Garcia-Aristizabal ◽  
Maryory Astrid Gomez-Botero

2014 ◽  
Vol 600 ◽  
pp. 166-174
Author(s):  
Liliana Fay ◽  
Paul Cooper ◽  
Luiz Henrique Lana ◽  
Danilo Pereira Souza

The growing industrialization of the construction materials, the evolution of the construction techniques and ease for conveyance, broadly speaking, eliminates the need to use local materials for construction. However, the earth still presents itself as a material with the potential to reintroduce the old and healthy construction habits, yet without precluding the search for technical innovations consistent with good environmental practices, and that may contribute to the formulation of simpler and cheaper processes. The current work developed the morphology of a new component of construction made with an easy acquisition and low cost material: soil-cement, a material and procedure proven, tested, and regulated. The redesign of a new construction component aims to facilitate the rise of the masonry through an innovative construction process, in which the settling mortar can be eliminated with a perfect fitting system. With the fitting block designed, the mould for pressing was then developed and prototypes were conformed, experimentally, in three soil-cement mixtures showing production feasibility. The prototypes were tested according to the related standards, being submitted to tests of resistance to compression, water absorption and sizing. The results showed that only the water absorption parameter did not comply with the standards and therefore must be targeted by future researches in order to improve the mixture composition.


2014 ◽  
Vol 798-799 ◽  
pp. 343-346
Author(s):  
Jonas Alexandre ◽  
Caio Lobato de Assis Paula e Silva ◽  
Afonso Rangel Garcez de Azevedo ◽  
Gustavo de Castro Xavier ◽  
Veronica Scarpini Candido ◽  
...  

Soil-cement blocks are worldwide used in civil construction competing with ceramic blocks like the red clay ceramic bricks. In the southeast of Brazil, particularly in the states of Espirito Santo and Rio de Janeiro, clay ceramic blocks predominate owing to lower processing costs. The incorporation of inexpensive raw materials into soil-cement blocks could improve their margin of competition. Therefore the present work investigated the processing and properties of soil-cement blocks incorporated with a relatively high amount, 81 wt%, of natural grit in substitution for the conventionally used gravel and sand. The grit had a convenient particle size. The results of compression and water absorption tests indicated that the grit incorporated soil-cement blocks attend the norms for civil construction.


Author(s):  
Y. S. Fang ◽  
Y. T. Chung ◽  
F. J. Yu ◽  
T. J. Chen

2020 ◽  
Vol 8 (5) ◽  
pp. 5280-5284

Over the past few years to stabilize the clayey soil which has been generally adopting these days in developing paved and unpaved roads, cement based products such as soil cement, and different kind of materials like lime are used. These additives being used in soil improves the strength, durability and workability of soil and generally it leads to a thickness reduction of the pavement layers. Regrettably, boundless amount of conventional additives are required to strengthen the soil used in pavements which leads to relatively long curing time. The compaction action should be completed within the stipulated time period, because which significantly affects the construction costs. The other disadvantages associated with cement stabilized layers can be the shrinkage cracks developed which reflect rapidly through asphaltic surfaces and cause greater deterioration. Therefore the development of polymeric based additives has been of particularly interest as they demonstrate many added advantages; such as their ability to reduce permeability, increase durability, allow non time depending during the mixing stage and provide increased flexibility. In this project PolyCom is being used as additive from the list of various Polymer Stabilization Materials. The advantage being selecting PolyCom as it does not create a chemical reaction and is not a rigid setting agent. Black cotton soil was taken in the analysis and it is added with PolyCom to find out the changes in the properties and from the inference of results it was observed that PolyCom addition enhances the Geotechnical properties of soil when compared to the black cotton soil used alone as a stabilized material.


2021 ◽  
Vol 10 (6) ◽  
pp. e0210615412
Author(s):  
João Victor da Cunha Oliveira ◽  
Frankslale Fabian Diniz de Andrade Meira ◽  
Leila Soares Viegas Barreto Chagas

Through the environmental perspective of producing new construction materials with the inclusion of tailings or residues that improve their properties and, at the same time, promote a practice that mitigates environmental impacts, the objective of this work is to diagnose the effect of incorporating scheelite- tailings as recycled aggregate in soil-cement bricks, partially replacing the soil, seeking to make its use feasible in interlocking pavements, as well as studying the physical-chemical properties of the mixing water used in the making of soil-cement bricks, originating from drains air conditioning system at IFPB Campus Campina Grande. The bricks produced used CP II Z-32 class cement, landfill cut-off soil for disposal, scheelite-tailings, and kneading water from air conditioning drains at the IFPB Campus Campina Grande. Conformation was performed manually with the aid of a hydraulic press, with subsequent curing at room temperature and periodic wetting during the first 7 days of cement hydration (alkaline stabilizer), until the ages of laboratory tests of compressive strength reached (28 days) and direct flexion (180 days). It was noted that the results of compressive strength exceeded the minimum limits of ABNT NBR 10834:2013, as well as the results of the flexion test demonstrated that the mechanical strength of the bricks is superior when incorporating the mineral tailings, a phenomenon also noticed through of the compressive strength test. The quality of the water used to manufacture the bricks, in addition to ensuring better chemical potential in the hydration reaction based on the state of the art, promotes a reduction in the use of water from the public supply, which comes from a relatively low water source.


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