Earth filling under floors with surplus soil containing more than 40% gravel or kankar excavated from foundation & taken only from outside the building plinth in 15 cm layers including ramming watering and consolidation lead upto 30 metres
Earth filling under floors with surplus soil containing more than 40% gravel or kankar excavated from foundation & taken only from outside the building plinth in 15 cm layers including ramming watering and consolidation lead upto 30 metres