ppt on replacement of fine aggregate by stone dust in concrete. Behaviour of Concrete on Replacement of Sand with Quaries . Behaviour of Concrete on Replacement of Sand with sand to that of quarry stone dust as fine aggregate. when compared with Quarry stone dust concrete. Contact Supplier
Abstract: The present investigation aims at the study of properties of concrete in which stone dust is used as a partial replacement for coarse sand and tyrechips of size to 10 mm as partial replacement of coarse aggregate by weight. Keywords: Cement, Coarse sand, Coarse Aggregate, Stone Dust, Tyre Chips size to10mm
From the results of experimental investigations conducted, it is concluded that the quarry dust can be used as a replacement for fine aggregate. It is found that 40% replacement of fine aggregate by quarry dust gives maximum result in strength than normal concrete and then decreases from 50%.
1. Recycled Portland Cement Concrete Aggregate (RPCCA). 2. Recycled Portland Cement Concrete Aggregate mixed with stone, sand, gravel or blast furnace slag. The requirements stated under GENERAL shall apply with the following modifications: A. The stockpile shall be no larger than the contract quantity plus thirty (30) percent of that quantity. The
investigation on utilization of quarry waste fine aggregate in concrete mixtures. ... the crushed stone waste as fine aggregate for concrete. Prakash Rao et al. 2004: carried out the tests on concrete with stone crusher dust as fine aggregate. Venkat et al. 2007: investigated on stone dust as fine aggregate in structural concrete. Get Price
The manufactured fine aggregate does not normally contain organic materials. But it may contain excess of fine crushed stone dust. Excessive silt and clay contained in the aggregates may result in increased shrinkage or permeability in addition to poor bond characteristics.
The beauty is in its function as a structural aggregate base material due to the large variety of particle sizes in the mixture. This is the best stone for filling potholes as it will not move easily. This material will give you the look of a gravel road. This is the aggregate used as a base under pavers or walls in hardscaping installations.
Aggregates for asphalt concrete are generally classified according to their source or means of preparation. They include: (1) Pit aggregates – Gravel and sand are natural aggregates and are typically pit material. (2) Processed aggregates – Natural gravel or stone that have been crushed and screened are typical processed aggregates. In the crushing operation, stone dust is also produced.
This material is produced rather than formed naturally and comes in a variety of sizes ranging from stone dust or screenings to about 12" or larger in diameter. Although it has many uses, including decorative landscaping and garden drainage, its main use is as an aggregate, with or without a binder, for construction purposes.
Experimental programme was conducted using 30%, 40%, 50%, 60% and 70% partial replacement of fine aggregate with stone dust has been taken for concrete of M25 grade with water cement ratio.
This method covers the determination of specific gravity and absorption of fine aggregate. The specific gravity may be expressed as bulk oven dry () specific gravity, bulk saturated surface dry (SSD) specific gravity, or apparent specific gravity.
Nov 14, 2013· Aggregates. Sea Sand This sand is obtained from the shore of sea. The shape of this sand is rounded. Due to water of sea it mixes with different chemicals. Stone Dust This is the 2nd type of fine aggregate. Cinder Cinder is the slag from a metal furnace. Before use this slag we crushed this so that its size remains in fine aggregate.
Marble. For a driveway, it can be mixed with cement powder, aggregate and water to form a strong concrete mix. When packed between pavers, marble dust provides a tighter bond than sand, which contains air pockets. The color is determined by the original coloring of the marble stone, but is typically gray or offwhite.
The specific gravity of fine aggregate is and fineness modulus of fine aggregate is Coarse aggregate: The coarse aggregate was locally available quarry passed through 20 mm. The specific gravity of coarse aggregate is Stone dust: Stone dust is composed from stone crushing units of Lucknow, Uttar Pradesh.