STATES

Rajasthan, Gujarat and Madhya Pradesh, maharashtra.

EXISTING CONDITIONS

AND

CONSTRUCTION

PRACTICES

The zone contains sand dunes, marshy land, black cotton soil and hilly region. The bricks produced are having low compressive strength of 25-40 kgfcm2 and high water absorption. Stones in most parts are used for walling. The rainfall is low and soil blocks bricks are used in construction of houses.

INNOVATION OF

MATERIALS,

COMPONENTS

AND

TECHNOLOGIES

·        Instead of mud blocks for walling, stabilized clay blocks with cement-lime-bitumen shall be produced mud used. Stone block masonry.

·        In areas where flyash is available, units production for producing building components utilizing flyash for clay-flyash bricks or and flyash-sand- lime bricks.

·        In place of RR masonary, solid concrete blocks of 30x20x15 cm and 30x15x15 cm with designed concrete mixes using 50 mm aggregates I stone spalls  or hollow concrete blocks of 40x20x20 cm shall be used. The partition wall blocks shall be 30x10x10 cm hollow.

Foundation

·        In black cotton soil areas the foundation can be on pedestal piles/under-reamed piles.

·        Burnt clay bricks in cm1:6

Wailing

·        Solid concrete blocks/hollow concrete blocks instead of R R masonry saves in cubic content of masonry, thereby reducing weight on foundations and achieving saving in foundation as well as masonry walling. It also provides faster construction and makes greater floor area for the same plinth area.

·        Single brick thick walls laid in cement mortar 1:6 as load bearing structure.

Lintels

·        75 mm thick precast RCC lintels, with or without sunshades, can be provided in brick or block masonry walls.

·        RC plinth bands, lintel bands and roof band using cement concrete M20 concrete.

Doors and

Windows

·        Braced and battened doors of secondary species timber with pivots at top and bottom can be provided with or without any frame.

·        RCC frames and shutter for doors and windows can be provided.

·        Ferrocement shutters for doors

Roofing

·        Precast RCC joist with prefab brick panels / RC plank / funicular shell / Precast Jackarch panel and concrete panels in roofs along with prefab brick panel system can be provided.

·        Slab roofing / RCC L-panel roofing.

·        Precast channel units of R.C.C.

·        AC/CGI sheets with purlins of steel/ RCC /ferrocement instead of timber can be used.

Flooring

·        PCC 1 :2:4 flooring 25 mm thick over a base course of lean concrete (1:5:10) 75 mm thick

Sanitation

·        Single stack system of plumbing.

·        G.!. I PVC pipes for water supply.

·        CII PVC soil I waste pipes