fully replacement of broken concrete in 20mm aggregate size

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Fully Replacement Of Broken Concrete In 20mm Aggregate Size

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aggregate impact value and specific gravitycompared to CDPS . Furthermore, the compressive strength, workability and density of concrete containing 0, 5,10, 15, 20 and 25% of CDPS as replacement to CG in concrete with a mix ratio 1:2:4 and a water/cement (w/c) ratio of 0.55 was studied. A total of ninety concrete cubes of sizes 150 x 150 x 150 mm

How to Repair Pea Gravel Concrete

Jul 17, 2017 · Although the gravel can be used on its own, you also can add it to cement to form pea gravel concrete. Pea gravel concrete is more decorative than plain concrete and offers better traction. Like any concrete, though, it is prone to hairline cracks and small chips, in which case you need to repair it.

Properties of Concrete with Coconut Shells as Aggregate Replacement

Properties of Concrete with Coconut Shells as Aggregate Replacement 23 4.1. Properties of fresh concrete Visual observations during mixing and compaction of all the concretes suggested that the concretes were homogeneous; there was no segregation and bleeding, the mixes were compactable. The fresh state performance of the CS

International Journal of ChemTech Research

2.3 Coarse Aggregate (CA) Broken granite stones are generally used as a Coarse Aggregates (CA).Locally available CA having the maximum size of 20mm was used in our work. The aggregates were washed to remove any dust and were dried. The Aggregates were tested as per Indian Standard Specifications. The grading of aggregate should be

replacement of sand by crusher dust in concrete pdf

II. CONCRETE MATERIALS AND THEIR PROPERTIES Coarse aggregate of 20mm maximum size is used in Reinforced cement concrete work of all types of structures. This is obtained by crushing the. USE OF QUARRY DUST IN CONCRETE AS REPLACEMENT FOR . Quarry dust is produced from crusher unit and each crusher unit is produced nearly 22% to 27% of dust.

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GB2425532A - Concrete compositions containing glass powder

A concrete composition comprises a Portland cement mix, coarse and fine aggregate, water and glass powder having a particle size distribution between 1mm and less than 35 microns, with more than 30% being less than 45 microns and 10% less than 35 microns. The Portland cement mix may comprise none, one or more of: pulverised fly ash, ground granulated blast furnace slag, metakaolin, silica fume ...

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Experimental Study on Concrete with Partial Replacement of

20 grade concrete to substitute 20% of normal 20 mm aggregates with ceramic tile aggregates without compromising its required compressive strength. For all concrete mixes (M 20, M25, M30) compression strength of concrete decreases with increase in the proportion of replacement of natural aggregates with tile aggregates.

Mechanical Properties Of Recycled Aggregates Concrete

2.6 Recycled Concrete as Aggregate for Structural Concrete Production. A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper.

Suitability of Crushed Cow Bone as Partial Replacement of Fine

partial or full replacement of fine aggregates. Fine aggregate was replaced with CCB by weight up to 100 % at intervals of 10%. The properties investigated were: workability, density and the compressive strength. The slump test and the compacting factor test were used to assess the workability of the concrete sample specimens. The density and compressive strength were determined using 150 mm …


A simple automatic mixed broken glass beneficiation system was developed by RRT in the early 90's to size, clean and sell the contaminated broken glass material as a construction aggregate product. While this material does not have a strong market value, it does contribute to overall plant performance by reducing residue disposal costs.


The coarse aggregates with size of 20mm were tested. Aggregates were available from local sources. Several investigations concluded that maximum size of coarse aggregate should be restricted in strength of the composite. In addition to cement paste – aggregate ratio, aggregate type has a great influence on concrete

Effect of stone dust on strength of concrete

concrete in construction work t he demand for fine aggregate is increased, to attain the demand of natural sand in concrete, partial or fully replacement of natural sand with stone dust is one of the effective method. Stone dust is the best alternative for the natural sand, because properties of natural sand and stone dust are similar 1.

Experimental Study on Concrete with Replacement Offine

Natural granite aggregate having density of 1500 kg/m3 and fineness modules (FM) of 6.024 was used. Water absorption is 0.5%.The specific gravity was found to be 2.80 and maximum size of aggregate was 20mm. 4.1.4 Quarry Dust: Quarry dust is fine rock particles. When boulders are broken into small pieces quarry dust is formed. It

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Concrete Mix Design Step by Step full Calculation

For Nominal max. size of aggregate for mix = 20 mm, Zone of fine aggregate = Zone II. And For w/c = 0.5. Volume of coarse aggregate per unit volume Concrete = 0.62. Table for correction in estimation of coarse aggregate proportion (Note 1: For every ±0.05 increase or decrease change in w/c, the coarse aggregate proportion is to be changed by 0 ...

Lomond Pearl Grey, 14-20mm. Sale on Aggregates at LSD.co.uk

Save on Lomond Pearl Grey, 14-20mm. Aggregates supplies online at LSD. Here at Landscaping Supplies Direct we offer quick delivery on all Aggregates products.

Experimental Study on Concrete by Partial Replacement of Fine

duced for maximum size of aggregate is 20mm con-ventional aggregate FA and ESP with replacement of fine aggregate. The replacement of FA and ESP respec-tively and combinely with fine aggregate by 7%, 14%, 21% ,28% and 35% is studied by casting cubes, cylinders and beams. The concrete is prepared in laboratory. The concrete is

PAPER OPEN ACCESS Crumb Rubber Recycling in Enhancing

the environment and to improve the longevity of structures, the scrap tyres can be broken, chopped into pieces, cleaned and then used as a replacement for aggregate [1,2]. India, being a highly populated country, has many structures adjacent to roadways. When heavy vehicles move on a road, ground vibrations in the form of waves are induced.

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Four different high strength concrete batches with constant water/cement (or water/cement+microsilica) ratio were prepared from the same Portland cement and natural sand. Two different sizes of crushed limestone coarse aggregate (5-10 mm or 10-20 mm) were used in the study. For each maximum aggregate size, two different concretes one with and ...

Concrete Mixture Design – Conventional Methods

The minimum cement contents in Table 7 correspond to concrete with maximum coarse aggregate size of 20 mm. When the maximum size is 10 mm, 40 kg/m 3 of cement should be added to the minimum values in Table 7.

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Replacement of Cement in Concrete

of concrete. Maximum nominal size of aggregates to be used in concrete may be as large as possible within the limits prescribed by IS 456:2000. The cement content is to be limited from shrinkage, cracking and creep. The workability of concrete for satisfactory placing and compaction is related to the size and shape of section.

Study on Replacement of Coarse Aggregate by E-Waste in Concrete

Study on Replacement of Coarse Aggregate by E-Waste in Concrete - written by Suchithra S, Indu V S published on 2018/07/30 download full article with reference data and citations

Experimental Study on Concrete and Cement Plaster Using

gravity was found to be 2.85 and maximum size of aggregate was 20mm. C. Fine Aggregate (Natural river sand) Locally available river sand having density of 1550 kg/m3 and fineness modulus (FM) of 2.44 was used. The specific gravity was found to be 2.59 the fine aggregate was found to be confirming to zone – II as per IS 383:1970.