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TECHNICAL PAPER COLLECTOR’S EDITION

CONCLUSIONS 2. Babu, K.K. Performance of quarry waste as fine

The following conclusions can be drawn from the aggregate in concrete, International Seminar on
results of this study. Civil Engineering Practice in Twenty First Century,
Roorkee, 1996, pp 926-934.

i. There is a significant increase in compressive 3. Shukla, M., Sahu, A.K. and Sachan, A. K.
strength, modulus of rupture and split tensile Performance of stone dust as fine aggregate
strength for both the concrete mixes when replacing sand in concrete and mortar, National
sand is partially replaced by stone dust. Seminar on Advances in Special Concretes, Indian
Concrete Institute, Banglore, India, 1998, pp
ii. The workability of the concrete mixes 241- 248.
decreased with an increase in percent of 4. Pofale, A. D. and Kulkarni, S. S. Comparative study
stone dust as partial replacement of sand. of strength properties of concrete mixes with
natural sand replaced fully or partially by crushed
iii. The workability of concrete mixes increased stone powder (Basalt) from aggregate crushing
with an increase in percent of superplasticiser. plant waste, National Seminar on Advances in
Special Concretes, Indian Concrete Institute,
It can be concluded that if 40 percent sand is
Banglore, India, 1998, pp 227-240.
replaced by stone dust in concrete, it will not only
reduce the cost of concrete but at the same time 5. Venugopal, S. and Nagaraj, T. S. Cement concrete
will save large quantity of natural sand and will also mixes with rock dust as fine aggregate —
reduce the pollution created due to the disposal of Analysis and methodology, Proceeding of the 5 th
this stone dust on valuable fertile land. International Conference on Concrete Technology
for Developing Countries, NCB- New Delhi, India,
1999, pp 1-3 — 12.
Reference
6. Shukla, M. and Sachan, A. K. Stone dust -
1. Nagaraj, T. S. and Zahida Banu; Efficient environmentally hazardous waste: Its utilization
utilization of rock dust and pebbles as aggregate in building construction, Materials and Machines
in portland cement concrete, The Indian Concrete for Construction, New Age International (P)
Journal, Vol 70, No 1, 1996, pp 1-4. Limited Publishers, 2000, pp V-77 - V-81.

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