Abstract

Paper Title/ Authors Name Download View

A STUDY ON VARIATION IN QUALITY OF FINE AGGREGATE IN UPSTREAM AND DOWNSTREAM AT KRISHNA RIVER AT VIJAYAWADA

P. Aswin prakash, Dheeraj Mehta, M.Vinod, B.Bharathi , K.Rajashekhara reddy


plan of establishment of state capital of Andhra Pradesh- Amravati, the vision of all the prominent leaders of the state and industrialists to make the state developed as fast as possible in all aspects is excepted to have a huge requirement of construction materials. In this region the requirement of fine aggregate is met from river Krishna and Godavari rivers only. With the increase in demand for fine aggregate in the region of coastal Andhra Pradesh and Hyderabad region, the fine aggregate from the Krishna river bed is being excavated in an unscientific manner and supplied. Samples from various sand reaches from the upstream and downstream of Krishna river at Vijayawada were collected and analyzed for various parameters and compared the results with specifications of IS 383-1970. Deviations were observed both in zone 2 and zone 3 when compared to IS specifications in size fractions .As the deposition of the sand is a natural process of geological action of river, it is bound to have variations in the size fractions, as there is no method of systematic mining and stock piling adopted in this region. In order to over come these variations in size fractions and to assure the construction industry with consistent quality of fine aggregate a proposal of removing excess size fractions from the fine aggregate of sand reaches of Vijayawada region and blending the short falls with artificial sand is made and schematic diagram of the same is presented. Index