For low cost houses in Pakistan, Reinforced Baked Clay (RBC) is considered to be a potential construction material as a substitute of Reinforced Cement Concrete (RCC). Deflection and cracks are important parameters fo...For low cost houses in Pakistan, Reinforced Baked Clay (RBC) is considered to be a potential construction material as a substitute of Reinforced Cement Concrete (RCC). Deflection and cracks are important parameters for design of beams in a building. However, for RBC beams it is still unknown that how the deflection and crack width could be controlled by increasing ratio of reinforcement. This study investigates the effect of ratio of reinforcement on deflection and cracking behaviour of baked clay beams. The results show that by increasing area of reinforcement by 50% in baked clay beams: 1) deflection was decreased to 2.5 times, and 2) crack width was reduced to three times.展开更多
Reinforced Baked Clay (RBC) seems to be potential alternative of Reinforced Cement Concrete (RCC) for construction of low cost houses. In order to utilize RBC as a construction material for buildings, it is necessary ...Reinforced Baked Clay (RBC) seems to be potential alternative of Reinforced Cement Concrete (RCC) for construction of low cost houses. In order to utilize RBC as a construction material for buildings, it is necessary to understand compression behaviour of baked clay. In this paper, relation between cube crushing strength and cylinder strength of baked clay is presented. For this purpose, clay beams were cast in a mould and compacted at a pressure of 6 MPa. The clay beams were dried and fired in a kiln at a temperature of 900?C. Cubes of 150 mm size were sawed from a baked clay beam. Cylinders of 150 mm diameter and 300 mm height were cut, from another baked clay beam, using core cutter machine. Both the cubes and cylinders were tested for compressive strength in Universal Testing Machine. The results showed that the cube crushing strength of baked clay was 25 MPa and the ratio of the compressive strength of the cylinders and the cubes was found to be 0.6. Suggestions for improvement of compressive strength of baked clay cylinders are also discussed.展开更多
Some disadvantages associated with conventional brick masonry are: high cost of construction, lower compressive strength and less durability. In order to resolve these problems, a new technique of constructing walls u...Some disadvantages associated with conventional brick masonry are: high cost of construction, lower compressive strength and less durability. In order to resolve these problems, a new technique of constructing walls using large size baked clay blocks is introduced. For this purpose, clay blocks of size 150 mm × 300 mm × 1980 mm were cast at a pressure of 6 MPa, and fired at a temperature of 700℃. In this paper, compressive strength and tensile strength of baked clay were investigated in order to find its suitability as a walling material for low cost houses. Cubes of 150 mm sides were tested in compression and the beams were tested in flexure. The results showed that compressive strength of baked clay cubes was found to be 10 MPa and tensile strength, in terms of modulus of rupture, was found to be 2.3 MPa. Since the baked clay blocks are larger in size than traditional bricks, it is inferred that the blocks could be used as a cheaper and stronger walling material.展开更多
文摘For low cost houses in Pakistan, Reinforced Baked Clay (RBC) is considered to be a potential construction material as a substitute of Reinforced Cement Concrete (RCC). Deflection and cracks are important parameters for design of beams in a building. However, for RBC beams it is still unknown that how the deflection and crack width could be controlled by increasing ratio of reinforcement. This study investigates the effect of ratio of reinforcement on deflection and cracking behaviour of baked clay beams. The results show that by increasing area of reinforcement by 50% in baked clay beams: 1) deflection was decreased to 2.5 times, and 2) crack width was reduced to three times.
文摘Reinforced Baked Clay (RBC) seems to be potential alternative of Reinforced Cement Concrete (RCC) for construction of low cost houses. In order to utilize RBC as a construction material for buildings, it is necessary to understand compression behaviour of baked clay. In this paper, relation between cube crushing strength and cylinder strength of baked clay is presented. For this purpose, clay beams were cast in a mould and compacted at a pressure of 6 MPa. The clay beams were dried and fired in a kiln at a temperature of 900?C. Cubes of 150 mm size were sawed from a baked clay beam. Cylinders of 150 mm diameter and 300 mm height were cut, from another baked clay beam, using core cutter machine. Both the cubes and cylinders were tested for compressive strength in Universal Testing Machine. The results showed that the cube crushing strength of baked clay was 25 MPa and the ratio of the compressive strength of the cylinders and the cubes was found to be 0.6. Suggestions for improvement of compressive strength of baked clay cylinders are also discussed.
文摘Some disadvantages associated with conventional brick masonry are: high cost of construction, lower compressive strength and less durability. In order to resolve these problems, a new technique of constructing walls using large size baked clay blocks is introduced. For this purpose, clay blocks of size 150 mm × 300 mm × 1980 mm were cast at a pressure of 6 MPa, and fired at a temperature of 700℃. In this paper, compressive strength and tensile strength of baked clay were investigated in order to find its suitability as a walling material for low cost houses. Cubes of 150 mm sides were tested in compression and the beams were tested in flexure. The results showed that compressive strength of baked clay cubes was found to be 10 MPa and tensile strength, in terms of modulus of rupture, was found to be 2.3 MPa. Since the baked clay blocks are larger in size than traditional bricks, it is inferred that the blocks could be used as a cheaper and stronger walling material.
