Abstract
Construction of Reinforced Cement Concrete (RCC) houses is unaffordable for low income people living in plains of Pakistan because of high cost of cement and aggregates. In such regions, use of Reinforced Baked Clay (RBC) is considered to be a cheaper alternative for RCC. This paper presents structural behaviour of RBC beams. The results of RBC beams were compared with a control RCC beam of same size and reinforcement. Both types of the beams showed similar load deflection behaviour in pre-yield stage. Whereas, in post yield stage, the RBC beams showed comparatively more deflection as compared to the RCC beam. The ultimate load carrying capacity of the RBC beams was almost similar to that of the RCC beam. This study suggests that the RBC beams can be used economically instead of RCC beams without losing strength and safety of a building.
Highlights
Cost of construction materials of a building i.e. cement, aggregates and steel used in Reinforced Cement Concrete (RCC) is not affordable by low income people of Pakistan
For convenience, deflection and ultimate load carried by a representative Reinforced Baked Clay (RBC) beam is compared with those of control RCC beam (Figure 7)
When the intensity of load was increased above 25% of the ultimate load, cracking of the RBC beam was observed initially at 21 kN, which is 26% of the average ultimate load taken by RBC beams
Summary
Cost of construction materials of a building i.e. cement, aggregates and steel used in Reinforced Cement Concrete (RCC) is not affordable by low income people of Pakistan. Precast panels of beams and columns can be cast from clay, baked and post-reinforced. These precast panels of Reinforced Baked Clay (RBC) could be used as low cost construction material in place of RCC [5]-[7]. This is because RBC does not require aggregates which are generally transported from distant
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