Thermal performance and structural cooling analysis of brick, cement block, and mud concrete block

Udawattha, Chameera; Halwatura, RU

doi:10.1080/17512549.2016.1257438

Cited by 34 publications

(13 citation statements)

References 13 publications

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“…The term bio-aggregate concretes refers to the mixture of binders (lime, clay, plaster, and cement) and natural fibers (hemp, straw, flax, bamboo, and animal hairs) [1]. In this context, the use of eco-friendly concrete such as hempcrete [2], wood-concrete [3], papercrete [4], and mud-concrete [5] has been growing considerably. Hempcrete is most widely used in the field of green construction owing to its remarkable environmental quality as a non-CO2 producer [6,7].…”

Section: Introductionmentioning

confidence: 99%

Structural Characteristics of Developed Sustainable Lime-Straw Composite

2019

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Construction materials made of renewable resources have promising potential given their low cost, availability, and environmental friendliness. Although hemp fibers are the most extensively used fiber in the eco-friendly building sector, their unavailability hinders their application in Iraq. This study aimed to overcome the absence of hemp fiber in Iraq and develop a new sustainable construction material, strawcrete, by using wheat straw and traditional lime as the base binder. A comparable method of developing hempcrete was established. The experimental program adopted novel Mixing Sequence Techniques (MSTs), which depended on changing the sequence of mixed material with fixed proportions. The orientation of the applied load and the specimen’s aspect ratio were also studied. The mixing proportion was 4:1:1 (fiber/binder/water) by volume. Results showed that the developed strawcrete had a dry unit weight ranging from 645 kg/m3 to 734 kg/m3 and a compressive strength ranging from 1.8 MPa to 3.8 MPa. The enhanced physical and strength properties varied with the MST and loading orientation. The properties of the developed hempcrete were compared with those of strawcrete.

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Section: Introductionmentioning

confidence: 99%

Structural Characteristics of Developed Sustainable Lime-Straw Composite

2019

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“…Mud concrete block is a building material invented by the University of Moratuwa, Department of Civil Engineering. The concept is to use available soil and mix them with 6% of cement and used alternative to the brick and cement blocks, mostly available in the market [1][2][3][4][5]. The concept is to aggregate 'Concrete' made using earth/soil.…”

Section: Mud Concrete Blockmentioning

confidence: 99%

Alternative Stabilizer for Mud Concrete

Udawattha¹,

Halwatura²

2018

Cement Based Materials

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Cement is one of the key stabilizers for earth constructions since Roman civilization. The invention of cement was one step in the human civilization. However, cement has many issues especially when it comes to the environmental conservation. The production of cement creates a lot of carbon dioxide and destroys the natural setting to some extent due to the high consumption of clay and lime. Therefore, this study was conducted to alter the cement in mud concrete block. The study started with an inventory of alternative stabilizers that can be found in nature as well as in the human production. And then, the chemical patterns of those stabilizers were carefully identified to alter the typical Portland cement. Several mix proportions were tested and developed to alter the cement and found that the following materials can be developed to alter cement. A natural stabilizer such as tree resins, latex rubber stabilizer, waste ash, rice husk ash and many other ashes can be developed to chemically stabilize the earth blocks. However, out of the invented stabilizers, fly ash and rice husk ash have the high potential to replace cement.

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“…Authors have been proposing the use of various materials combined with cement matrix trying to solve this challenge (Alyousef, Benjeddou, Soussi, Khadimallah, & Jedidi, 2019;Callejas, Durante, & Oliveira, 2017;Dimitrioglou et al, 2016;Fajardo, Torres, & Moreno, 2015;Kanchanapiya, Methacanon, & Tantisattayakul, 2018;Kus, Özkan, Göcer, & Edis 2013;Udawattha & Halwatura, 2018;Xu, Chen, Zhang, Gao, & Huang, 2016;Zaetang, Sata, Wongsa, & Chindaprasirt, 2016;Zhu, Dai, Bai, & Zhang, 2015). Research, Society andDevelopment, v. 9, n. 11, e2939119838, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v9i11.9838 4 The energy concern and the large generation of low degradability residues are proposed several studies aiming the use of residues in building materials, since the construction sector is the one that demands the most energy in a world scale.…”

Section: Introductionmentioning

confidence: 99%

Physical, mechanical and thermal behavior of concrete block stabilized with glass fiber reinforced polymer waste

Portela

Gandia

Araújo

et al. 2020

RSD

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The Glass Fiber Reinforced Polymer (GFRP) waste despite having excellent physical and mechanical properties is still largely unexplored besides presenting large volume of waste with very low degradability. The use of concrete block presents high resistance to compression, low price high masonry coating ratio by material weight, however high thermal conductivity. Therefore, the study aimed to produce and investigate the effect of adding GRFP residues to concrete blocks due to physical, mechanical and thermal properties. The compositions were made by replacing the fine gravel between 0 to 10% in mass by the GFRP residue. They were evaluated from physical, mechanical and thermal tests. The results showed that the use of GFRP residue did not interfere in water absorption and compressive strength, despite the significant increase in mechanical energy absorption of the material. Thermal conductivity reduced by 46% and the concrete blocks were 7% lighter. In addition to providing a destination for a considerable quantity of the waste, the commercial value of the final product is higher due to using a residue with low degradability and high energy power due to burning during recycling.

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Thermal performance and structural cooling analysis of brick, cement block, and mud concrete block

Cited by 34 publications

References 13 publications

Structural Characteristics of Developed Sustainable Lime-Straw Composite

Structural Characteristics of Developed Sustainable Lime-Straw Composite

Alternative Stabilizer for Mud Concrete

Physical, mechanical and thermal behavior of concrete block stabilized with glass fiber reinforced polymer waste

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