Scrap tire ashes in portland cement production

Scrap Tire Derived Fuel: Markets and Issues

Recycled Materials in Portland Cement Concrete

.............................................................................................................................1 Wastes and By-Products for Use in Portland Cement Concrete.....................................2 RESEARCH OBJECTIVES ....................................................................................................3 LITERATURE SURVEY.....................................

Drying Shrinkage Mechanisms in Portland Cement Paste

The shrinkage mechanisms of portland cement paste were investigated from shrinkage, weight loss, and pore structure measurements using nitrogen sorption and mercury intrusion porosimetry (MIP). Thin samples (2.3 mm) of well-hydrated (165 d) pastes of 0.4 and 0.6 water-to-cement (W/C) ratios were dried directly from saturated surface dry state to 75%, SO%, 11%, and 0% relative humidity (rh). Fro...

Properties of concrete containing scrap-tire rubber--an overview.

Solid waste management is one of the major environmental concerns in the United States. Over 5 billion tons of non-hazardous solid waste materials are generated in USA each year. Of these, more than 270 million scrap-tires (approximately 3.6 million tons) are generated each year. In addition to this, about 300 million scrap-tires have been stockpiled. Several studies have been carried out to re...

The Utilization of Mswi Fly Ashes in Cement Production and Its Impact on Heavy Metal Contents in Cement

SUMMARY: The disposal of fly ashes from municipal solid waste incineration (MSWI) is becoming a growing environmental issue in Europe. In order to avoid landfilling and recycle MSWI fly ashes, initiatives aim to recycle them in cement production. While numerous studies have analyzed the impact of MSWI ashes application on the concrete quality and the leaching of potentially hazardous heavy meta...