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Strength and durability of recycled aggregate concrete ...

Strength and durability of recycled aggregate concrete ...

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attack and chloride attack. Normal sand was used as fine aggregate in all concrete materials. Table1 shows physical properties ofthe andrecycled coarse aggregates as well as that of sand. The physical properties and chemical composition of the milled waste glass used in the experimental work are shown in Tables 2 and 3, respectively.

Effect of coconut coir pith as partial substitute for ...

Effect of coconut coir pith as partial substitute for ...

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Jul 16, 2019· The main objective of this study is to ascertain the feasibility of utilization of untreated coconut coir pith as partial replacement of fine aggregate in concrete and the conclusions are Coconut coir pith particles can be used as partial substitute of sand in concrete.

Effect of use of Silica Sand as Fine Material in Concrete

Effect of use of Silica Sand as Fine Material in Concrete

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From the raw material different size of silica sand are separated by different size of sieve. Sand size of 30 mesh to 80 mesh (500 micron) is used in the glass industries. Sand size to 600 micron can be used in making concrete mix as the partial replacement of fine aggregate.

(PDF) BEHAVIOUR OF CONCRETE ON THE USE OF QUARRY DUST .

(PDF) BEHAVIOUR OF CONCRETE ON THE USE OF QUARRY DUST .

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This result gives clear picture that quarry dust can quarry dust. This dust is heaped like a mountain near the stone be utilized in concrete mixtures as a good substitute for natural crushers. The volume of the waste dust produced is increased river sand at 50% replacement with additional strength than day by day.

Production and characterization of concrete paving blocks ...

Production and characterization of concrete paving blocks ...

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substitute for aggregates in the production of shaped concrete paving blocks (CPB). FNS is a H byproduct of the pyrometallurgical treatment of for the recovery of Ni as ferronickel; its laterites size distribution ranges within the specified limits for use as aggregates replacement, as shown by granulometric tests.

crushed aggregates as substitute to sand in concrete

crushed aggregates as substitute to sand in concrete

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Research on River Sand Substitutes for Concrete Production ... CIC. To review the specifications of river sand substitute(s) for concrete production ... test method of sand and crushed stone (or gravel) for ordinary concrete. Read More. assessment of palm kernel shells as aggregate in concrete.

River sand SlideShare

River sand SlideShare

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Oct 14, 2012· River sand. 1. River Sand for ConstructionSand is used as fine aggregate in mortars and concrete. Natural river sand is the most preferred choice as a fineaggregate material. River sand is a product of natural weathering of rocks over a period of millions of years. Itis mined from the river beds.

Concrete Substitute, a UA Startup, Brings Advantages | UANews

Concrete Substitute, a UA Startup, Brings Advantages | UANews

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Feb 21, 2017· Inventor Jinhong Zhang, associate professor of mining and geological engineering in the University of Arizona's College of Engineering, has developed a new substitute for concrete that has a number of advantages over traditional Portland cement. The new material is lighter, stronger and less expensive to produce than concrete. It does this while using three times as much fly ash, thus tripling ...

A cracking alternative to cement | Technology | The Guardian

A cracking alternative to cement | Technology | The Guardian

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May 11, 2006· A cracking alternative to cement. Harder still, one without the convenience of a car. But a world entirely without cement lies further out of reach, in an untamed place shorn of Tarmac, airport runways, road bridges, skyscrapers, underground stations or modern reservoirs. Such is .

11 green building materials that are way better than concrete

11 green building materials that are way better than concrete

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Green Building Materials 1 of 14. Concrete is a material that quite literally holds our cities together. From homes and apartment buildings to bridges, viaducts, and sidewalks, this ubiquitous ...

The Use of Coconut Fibre in the Production of Structural ...

The Use of Coconut Fibre in the Production of Structural ...

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It is concluded that crushed coconut shells are suitable when it is used as substitute for conventional aggregates in lightweight concrete production. Previous study by Olanipekun et al . (2006) has shown that coconut shell is suitable as substitute for conventional aggregates in .

Powdered Shell Wastes as Partial Substitute for Masonry ...

Powdered Shell Wastes as Partial Substitute for Masonry ...

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technology options for powdered shell as partial substitute for Portland cement is the use of 15% mussel shell powder or 15 % oyster shell powder or 10 % oyster shell powder.

Fly ash Wikipedia

Fly ash Wikipedia

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Concrete production, as a substitute material for Portland cement,sand. Flyash pellets which can replace normal aggregate in concrete mixture. Embankments and other structural fills (usually for road construction) Grout and Flowable fill production; Waste stabilization and solidification; Cement clinker production (as a substitute material for clay)

Effect of replacement of natural sand by manufactured sand ...

Effect of replacement of natural sand by manufactured sand ...

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Aggregate: Locally available river sand as fine aggregate ( to 75 micron ( to in)) is used. Manufactured sand ( to 75 micron ( to in)) is used for partial replacement to natural sand. Natural and manufactured sand are from zone II (IS 383).

Comparison of the Compressive Strength of Concrete ...

Comparison of the Compressive Strength of Concrete ...

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only Makurdi river sand as fine aggregate, served as the control mix. And base on his findings the partial replacement of Makurdi river sand with 20% CGF is recommended for use in concrete production for use in rigid pavement (in low to moderately trafficked roads).

Valorization of Wastes from Power Plant, SteelMaking and ...

Valorization of Wastes from Power Plant, SteelMaking and ...

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Keywords Industrial wastes · Sustainable concrete · Waste recycling · Palm oil clinker · Bottom ash · Steel slag Introduction Concrete industry today is the largest consumer of natural resources [1]. In the production of concrete, conventional mining and river sand are considered as one of the main raw materials used as fine aggregate.