MANUFACTURE OF INTERLOCKING CONCRETE PAVING BLOCKS WITH FLY ASH AND GLASS POWDER

Problems associated with construction site have been known for many years. Construction industry has to support a world of continuing population growth and economic development. Interlocking concrete paving blocks are ideal materials on the footpaths, parking areas, gardens, etc. for easy laying, better look and finish. But now being adopted extensively in different uses where the conventional construction of pavement using hot bituminous mix or cement concrete technology is not feasible or desirable. The rising costs of construction materials and the need to adhere to sustainability, alternative construction techniques and materials are being sought. To increase the applications of concrete paving blocks, greater understanding of products produced with locally available materials and indigenously produced mineral admixtures is essential. In the present investigation, concrete paving blocks may be produced with locally available cement, aggregates, fly ash and waste glass powder as the mineral admixture. Different mix proportions are prepared using cement replaced by equal quantity of fly ash and waste glass powder. The study indicated that fly ash and waste glass powder can effectively be used as cement replacement without substantial change in strength