compressive strength of m grade concrete with recycled concrete aggregate

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Effect of microstructure of ITZ on compressive strength of ...

The compressive strength results that the concrete prepared with natural aggregates was higher than that of the recycled aggregate concrete. Also, the strength development of the HPC recycled aggregate concrete was faster than that of the NC recycled aggregate concrete.

Effect of Steel Fibres on Compressive Tensile Strength ...

to examine the suitability of MSand as fine aggregate in concrete and an attempt is made to evaluate the effect of the steel fibres on concrete grade of M25 M30 prepared by MSand. Stone crushed in require grain size is called MSand. ... Average compressive strength of concrete grade M25 M 30. Compressive strength of ...

Prediction of Compressive Strength of "Green" Concrete

Prediction of Compressive Strength of "Green" Concrete Using Artificial Neural Networks Behzad Abounia Omran and Qian Chen, ... The compressive strength (CS) of concrete is one of the most important properties in concrete design. Many ... the four main ingredients used to make concrete are water, cement, fine aggregate (sand) and coarse

Studies on Strength and Related Properties of Concrete ...

Guan [16] conducted compressive strength tests in Singapore on concrete of three different watercement ra tios, and He replaced natural aggregates with Grade 20 recycled concrete aggregate (RCA) in the proportions 25%, 50%, 75% and . He found that all three mixes were able to achieve approximately a

Durability And Performance Characteristics Of Recycled ...

Calculated splittingtensile to compressive strength ratio values ranged from to for recycled concrete, compared to to for standard aggregate concretes. The variation of drying shrinkage strain with time for both recycled and reference concretes is shown in Fig. 2.

Compressive behaviour of recycled aggregate concrete under ...

In this study, the compressive behaviour of recycled aggregate concrete (RAC) under high strain rates ranging from 10 1 /s to 10 2 /s was experimentally investigated. The main conclusions drawn are as follows: (1) The compressive strength of the RAC specimens under impact loadings increases with increasing strain rate.

Strength and Workability Characteristics of Concrete by ...

Strength and Workability Characteristics of Concrete by Using Different Super Plasticizers . respectively. The grain size distribution curve is given in Figure 1. Grain size distribution of Fine aggregate . Coarse Aggregate: The coarse aggregate used in the experimental investigation is a mixture of 20mm and 10mm size aggregates.

Compressive Strength of Concrete Cube Test, Procedure ...

Procedure: Compressive Strength Test of Concrete Cubes For cube test two types of specimens either cubes of 15cm X 15cm X 15cm or 10cm X 10cm x 10cm depending upon the size of aggregate are used. For most of the works cubical moulds of size 15cm x 15cm x 15cm are commonly used.

Experimental Study of Mechanical Properties of Concrete ...

Experimental Study of Mechanical Properties of Concrete using Recycled Aggregate with Nano Silica Apurva A. Fursule1, ... Compressive Strength of M30 Grade of Concrete Sr. No. Mix Identity Avg. Compressive Strength (N/mm2) ... There is a reduction in compressive strength of concrete with increase in the percentage replacement

Design of Normal Strength Concrete Mixtures with Recycled ...

The compressive strength and elastic modulus of the mixes with recycled concrete aggregates showed little variation from concrete with natural aggregates. Vast amounts of natural aggregates (, crushed stone, gravel) are used for the construction and maintenance of our civil infrastructure.

Pea Gravel Mix| Concrete Construction Magazine | Concrete ...

Pea Gravel Mix. Even with enough cement to get 3000psi compressive strength, the concrete is marginal. It will be porous, and moisture will seep through easily, causing discoloration and wet spots. But even with all these problems, many small contractors order these mixes for patios, house foundations, driveways, retaining walls, and so forth.

Investigations on Concrete with Recycled Concrete as ...

For recycled concrete aggregate, the result shown that the addition of recycled aggregate resulted in a significant reduction in concrete compressive strength with the control specimen. This reduction increased with increasing percentage of recycled aggregate. Reduction in M25 grade cube compressive strength of 2% (R20), 8%

Experimental Investigation on the Propertiesof Recycled ...

tensile strength and compressive strength ith partial w replacement of recycled aggregate and coconut shell aggregate concrete are investigated. REVIEW: Recycled Aggregate: M Etxeberria et al (2006) used specified recycled coarse aggregates obtained by crushed concrete for concrete production.

IJAERS: The Effects of Recycled Aggregates on Compressive ...

Strength of Concrete, RCA, NAC, C DW. Abstract: Demolished concrete can be used as recycled concrete aggregate (RCA) for construction purposes. In the research, the compressive strength of concrete made from recycled coarse aggregates and natural coarse aggregates .

Recycled Concrete as Aggregate for Structural Concrete ...

Recycled concrete aggregate was produced by crushing of ―old‖ concrete cubes used for compressive strength testing and one precast reinforced concrete column, which had inappropriate dimensions (Figure 1).

Demolished waste as coarse aggregate in concrete

concrete. Test results showed that the compressive strength of recycled concrete up to 30% coarse aggregate replacement (C. A. R.) by demolished waste at the end of 28 d has been found to be comparable to the conventional concrete. Keywords: Demolished wastes, workability, compressive strength, recycled concrete, coarse aggregate.

An Experimental Study on Compressive Strength of Fiber ...

Strength Recycled Aggregate Concrete. In this study the fresh and hardened state properties of partially replaced recycled aggregate concrete, with varying percentages of glass fibers, are compared with the corresponding conventional aggregate concrete. The compressive, split tensile and flexural strengths of M50 grade concrete

Effect of Recycled Aggregate with Glass Fiber on Concrete ...

M30 grade concrete by replacing fine aggregate by fiber up to %. The increase in compressive strength is nominal while the flexural strength increased significantly as expected with the increase in percentage of glass fiber.

IRJETEffect of Replacement of Fine Aggregates with Fly ...

RESULS AND DISCUSSIONS aggregates are replaced by a percentages of 25% and 50% by Table 1 Compressive Strength Results for 25% flyash fine aggregates with a different proportions are Replacement of Sand checked and the results are compared with a M 30 grade conventional concrete results. 150mm X 150mm X 150mm Aggregates Compressive Strength ...

Effect of Recycled Aggregate on Compressive Strength of ...

Fig 5: 7days Compressive strength of M30 mix concrete with different replacement level of recycled aggregate. Fig 6: 14days Compressive strength of M20 mix concrete with different replacement level of recycled aggregate.

STRENGTH PARAMETERS OF CONCRETE CONTAINING .

properties of concrete containing recycled aggregate and fly ash. IS 10262:2009 method of mix design is adopted. Mix design was made for M 20 grade concrete. From the experimental results they concluded that 15% of recycled aggregate and 10% of fly ash gives strength close to control concrete.

Durability Study for Normal Grade Concrete with Recycle ...

The compressive strength of concrete at 7 ... recycled concrete aggregates and granular materials for reuse in constmction industry. In order to protect the environment and for sustainable development, it ... unboWld road base and lowgrade concrete. In 2001, CED conducted a study to investigate the use of recycled aggregates in