Inherent properties of silicates make them useful as fire retardants, fillers, cation exchangers, catalysts, and construction materials for use as building stone, road aggregate, and light-weight aggregate for concrete (Short and Petsonk 1996).
This paper presents the properties of concrete prepared with the sorted construction waste (low grade recycled aggregates) and a commercial recycled aggregate for concrete production.
The constant increase in consumption of aggregates for concrete production represents a major environmental issue in the construction industry.
In the long term, however, as the demand for sub-base course materials is expected to fall because of declining road construction (Hendriks and Janssen 2001; Shima et al. 2005), it is important to expand the scope of concrete-waste recycling and use recycled aggregates for concrete mixes.
Therefore, using ( Coverline{S} A ) cement and marginal aggregates for concrete in a freeze thaw environment may prove less expensive than portland cement concrete and higher quality aggregates.
Granite Construction, which provides building supplies such as aggregate for ready-mixed concrete and performs construction work on roads and transit projects, saw its business increase with the rising economy even before the new gas taxes kicked in last November.
Construction slowdown affected demand for concrete made by Henry Ng's Pan United.
The recovered aggregates are used as landfill, for construction, and for making concrete.
The use of natural lightweight aggregate for making lightweight concrete can lead to low-cost construction.
This paper reports the results of an experimental investigation into the development of pervious concrete with reduced cement content and recycled concrete aggregate for sustainable permeable pavement construction.
Standards for concrete aggregate define a range within which the gradation of aggregate must lie in order to be acceptable aggregate for structural concrete.
