Sahraj Engineering

DEFECTS IN BRICK MASONARY.   Following are the different types of defects generally found in bricks: 1. Over burning of bricks When bricks over-burn, soft molten mass is produced and the brick will its shape along with other designated requirements.   2.Under burning of bricks When bricks are not burnt to cause complete vitrification, the clay is not softened because of insufficient heat and the pores are not closed.Consequently, bricks with low compressive strength and high-water absorption will be produce .They produce a dull sound when struck against each other. Finally, such bricks are not recommended for construction works. 3. Bloating of bricks  Bloating of bricks is spongy swollen mass over the surface of burned bricks. Presence of excess carbonaceous matter and Sulphur in brick-clay is the main cause of bloating. 4. Efflorescence Presence of drying grey or white powder patches on the brick surface is the efflorescence indicator. This defect is caused because of al...

 LOW COST HOUSING TECHNLOGIES IN INDIA  By : Sahil Kishore Sharma  The government of India has given a recent push  to promote low-cost housing in India and has  set a  target to build 2 Crore affordable houses by March 2022, this segment of affordable housing has seen huge demand and sales recently.  One in every five houses is now priced at less than INR 25 lakh. Affordable housing contribution in the residential sector has seen an increase from 8% to 21% within a short span of three years.  Figure: Segmentation of housing prices in FY16 and FY19 Growing urbanization  has led to migration towards cities and resulted in an increased demand for affordable low-cost  housing . Moreover, with sustainability gaining momentum, there is a need to balance both energy consumption and the environmental impact of materials used for building houses. Low-cost building materials not only increase access to permanent housing for people from low and m...