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Cement Stabilized Mud Blocks Admixed with Bagasse Fibre, Wheat Straw and Crumb Rubber: Physico-Mechanical and Thermal Investigation
Use of mud in building construction is not just to provide shelters, but work also as a heat insulating medium. The goal of this experiment was to develop cement stabilized mud composites (masonry blocks: 400 × 200 × 200 mm and tiles: 300 × 300 × 25 mm) using cohesion less soil with wheat straw, crumb rubber, bagasse, and water. Soil used was poor in plasticity as per IS: 2115–1980. As a result, the soil was initially stabilized by adding up to 10% cement. The water binder (w/b) ratios for each mix proportion were optimized after cement was added. By replacing and/or adding straw, crumb rubber, and bagasse fibre, a total of 15 mix-proportions were developed. To determine physico-mechanical and thermal properties, four numbers of cubes were cast for each mix. Three cubes were utilized to calculate compressive strength (CS), whilst one cube was used to calculate green-dry density. Mud phuska tiles were cast to determine thermal conductivity of the mud composites. To determine drying shrinkage; prism bar of size 250 × 25 × 25 mm were cast. Moist curing were adopted till 28 days. Desirable CS (2.65 MPa), dry density (1020 kg/m3) and k-value (0.252 W/m.K) was achieved for mix proportion developed by adding 7.5% wheat straw (by wt. of cement + soil), 10% cement (by weight of less cohesive soil) along with 10% addition of crumb rubber (by wt. of soil and cement). Also, the model houses (L × B × H = 430 × 510 × 330 mm) were developed for testing the heat insulation properties of mud composites. For comparison, another conventional brick-concrete model house was constructed using conventional burnt clay brick and concrete roof, and then the average temperature was monitored for seven days. It was inferred that house with cement stabilized mud phuska composites (masonary blocks and tiles) was cooler than the traditional brick-concrete model house.
Cement Stabilized Mud Blocks Admixed with Bagasse Fibre, Wheat Straw and Crumb Rubber: Physico-Mechanical and Thermal Investigation
Use of mud in building construction is not just to provide shelters, but work also as a heat insulating medium. The goal of this experiment was to develop cement stabilized mud composites (masonry blocks: 400 × 200 × 200 mm and tiles: 300 × 300 × 25 mm) using cohesion less soil with wheat straw, crumb rubber, bagasse, and water. Soil used was poor in plasticity as per IS: 2115–1980. As a result, the soil was initially stabilized by adding up to 10% cement. The water binder (w/b) ratios for each mix proportion were optimized after cement was added. By replacing and/or adding straw, crumb rubber, and bagasse fibre, a total of 15 mix-proportions were developed. To determine physico-mechanical and thermal properties, four numbers of cubes were cast for each mix. Three cubes were utilized to calculate compressive strength (CS), whilst one cube was used to calculate green-dry density. Mud phuska tiles were cast to determine thermal conductivity of the mud composites. To determine drying shrinkage; prism bar of size 250 × 25 × 25 mm were cast. Moist curing were adopted till 28 days. Desirable CS (2.65 MPa), dry density (1020 kg/m3) and k-value (0.252 W/m.K) was achieved for mix proportion developed by adding 7.5% wheat straw (by wt. of cement + soil), 10% cement (by weight of less cohesive soil) along with 10% addition of crumb rubber (by wt. of soil and cement). Also, the model houses (L × B × H = 430 × 510 × 330 mm) were developed for testing the heat insulation properties of mud composites. For comparison, another conventional brick-concrete model house was constructed using conventional burnt clay brick and concrete roof, and then the average temperature was monitored for seven days. It was inferred that house with cement stabilized mud phuska composites (masonary blocks and tiles) was cooler than the traditional brick-concrete model house.
Cement Stabilized Mud Blocks Admixed with Bagasse Fibre, Wheat Straw and Crumb Rubber: Physico-Mechanical and Thermal Investigation
Lecture Notes in Civil Engineering
Hau, Kong Kian (editor) / Gupta, Ashok Kumar (editor) / Chaudhary, Sandeep (editor) / Gupta, Tanmay (editor) / Kumar, Rajesh (author) / Singh, Bibhakar Kumar (author)
Recent Advances in Structural Engineering and Construction Management ; Chapter: 49 ; 609-623
2022-09-28
15 pages
Article/Chapter (Book)
Electronic Resource
English
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