# Coarse Aggregate Size Compressive Strength

### The Effect of Aggregate Size on The Strength of Concrete

size can achieve compressive strength up to 160 Mpa at 28 days [3]. Mineral content in coarse aggregate also influence to the bond strength of the aggregate-concrete mix. Normal concrete compressive strength at 28 days for the granite aggregate is 30 MPa [4]. Aggregate shape and texture can help to improve the

Get Price### Effects of Coarse Aggregate Size on the Compressive

considered coarse aggregate samples of maximum sizes of 10, 14 and 20 mm at constant water/cement ratio of 0.63. Their results showed that the smallest coarse aggregate size gave the highest compressive strength and lowest slump at constant water/cement ratio.

Get Price### Coarse aggregate size compressive strength -

Effects of Coarse Aggregate Size on the Compressive Strength of Concrete. This study investigates the effect of aggregate size on the compressive strength of concrete. Two nominal mixes, that is, 1:2:4 and 1:3:6 were used in the study. Concrete cubes were produced with 6, 10, 12.5, 20 and 25 mm aggregates for the two nominal mixes and they were

Get Price### (PDF) Effect of Coarse Aggregate Size on the

Effect of Coarse Aggregate Size on the Compressive Strength and the Flexural Strength of Concrete Beam Article (PDF Available) · January 2015 with 2,707 Reads How we measure 'reads'

Get Price### Effects of Aggregate Properties on Concrete -

Variation in the size of Aggregates changes the water demand, cement content, micro-cracking (strength) in concrete. It also effects pumpability, and durability of concrete. Grading of aggregates depends on the proportions of coarse and fine aggregate. If grading of aggregate is varied, it also changes cement paste content (cost economy), workability of the mix,

Get Price### Classification of Aggregates as per Size and

Gravel, cobble and boulders come under this category. The maximum size aggregate used may be dependent upon some conditions. In general, 40mm size aggregate used for normal strengths and 20mm size is used for high strength concrete. the size range of various coarse aggregates

Get Price### IMPACT OF COARSE AGGREGATE ON COMPRESSIVE STRENGTH

gravel gave similar compressive strength while the concrete containing limestone attained higher strength. Meddah, Zitouni, and Belâabes (2010) conducted a research on the effects of content and particle size distribution of coarse aggregate on the compressive strength of concrete. Three types of coarse

Get Price### Influence of Aggregate Gradation of Coarse

Concrete is widely used in engineering construction, and studying how to improve the strength of concrete is particularly important. The coarse aggregate is one of the elements in concrete, its property affects the strength of concrete prominently. The effect of coarse aggregate size distribution on the development process of concrete strength was studied, while keeping the constant content of

Get Price### Compressive strength of reduced concrete

1. Introduction. Comparative studies of the compressive strength of various types of concrete specimens have been carried out since the beginning of the 20th Century,, and also in more recent times,,,, .Most of the studies in this area concern differences in the size and shape of the specimens, as well as the coarse aggregates used.

Get Price### What is the effect of coarse aggregate size in

1. The coarse aggregates should be properly graded, and the gradation becomes more and more important as we increase the maximum size of coarse aggregate because of greater voids, which needs to be filled to attain the desired compressive strength. As void fraction increases on increasing the size of aggregates. 2.

Get Price### Effect of Maximum Aggregate Size on the

The strength of (normal or high-strength) concrete is affected by the maximum size of a well-graded coarse aggregate. Concrete mixes containing larger coarse aggregate particles need less mixing water than those containing smaller coarse aggregates, In other words, small aggregate particles have more surface area than a large aggregate particle.

Get Price### Effect of aggregate type on Compressive strength of concrete

attained higher strength. The effects of content and particle size distribution of coarse aggregate on the compressive strength of concrete have been investigated (Meddah, Zitouni, and Belâabes 2010). Three types of coarse aggregates were mixed in four different proportions for concrete production.

Get Price### Influence of size and surface condition of

Using coarse aggregate of 20–25 mm as DFCA, the limestone powder as aggregate microfine could further improve the compressive strength of DFCA concrete with a distributing-filling ratio of 20%, while generally, the surface conditions of DFCA have slightly influences on the flexural strength, permeability, drying shrinkage and freezing-thawing resistance of DFCA concrete.

Get Price### The Effect of Aggregate Properties on Concrete

Aggregate is classified as two different types, coarse and fine. Coarse aggregate is usually greater than 4.75 mm (retained on a No. 4 sieve), while fine aggregate is less than 4.75 mm (passing the No. 4 sieve). The compressive aggregate strength is an important factor in the selection of aggregate.

Get Price### Effect of Aggregate Flakiness on the Compressive Strength

effect of aggregate category on compressive strength of concrete. Three types of coarse aggregates used i.e., quartzite, granite, and river gravel, were used. The fine aggregate is normal type sand found from a borrow pit. Preliminary laboratory analysis was conducted to establish the suitability via the aggregates for construction related works.

Get Price### Effect of aggregate type on Compressive strength of concrete

attained higher strength. The effects of content and particle size distribution of coarse aggregate on the compressive strength of concrete have been investigated (Meddah, Zitouni, and Belâabes 2010). Three types of coarse aggregates were mixed in four different proportions for concrete production.

Get Price### Influence of size of aggregates on the Compressive

The results indicated that larger sized coarse aggregates yielded higher compressive strength than smaller sized aggregates. 4. CONCLUSION Given a constant water to cement ratio (0.5) and mix (1:2:4), a change in coarse aggregate size affected the workability (slump) of

Get Price### [PDF] Effects of Coarse Aggregate Size on the

This study investigates the effect of aggregate size on the compressive strength of concrete. Two nominal mixes, that is, 1:2:4 and 1:3:6 were used in the study. Concrete cubes were produced with 6, 10, 12.5, 20 and 25 mm aggregates for the two nominal mixes and they were subjected to compressive strength test after curing for 7, 21, 28 and 56 days.

Get Price### Effect of Aggregate Size and Gradation on Compressive

aggregate size from 10mm to 64 mm (3/8 to 2 ½ inch.) results in a decrease in the compressive strength of concrete, by as much as 10 percent. Bloem and Gaynor [8] studied the effects of size and other coarse aggregate

Get Price### Investigating the Effects of Coarse Aggregate Types on The

Investigating the Effects of Coarse Aggregate Types on The Compressive Strength Of Concrete Aginam, C. H.1, Chidolue, C. A.2, And Nwakire, C.3 1, 2, 3Department of Civil Engineering, Nnamdi Azikiwe University, Awka Anambra State, Nigeria ABSTRACT Concrete has a far greater strength than mortar and sandcrete of the same cement: aggregate ratio.

Get Price### Effect of Aggregate Size on Strength| Concrete

Effect of Aggregate Size on Strength How To. Posted on: March 01, 1980. Problem If the quantities of coarse aggregate, fine aggregate, cement and water are the same for both mixes, the mix with l l/2-inch aggregate will have greater slump and will probably bleed more.

Get Price### Influence of size of aggregates on the Compressive

The results indicated that larger sized coarse aggregates yielded higher compressive strength than smaller sized aggregates. 4. CONCLUSION Given a constant water to cement ratio (0.5) and mix (1:2:4), a change in coarse aggregate size affected the workability (slump) of

Get Price### PAPER OPEN ACCESS Related content Effect of Different

compressive strength decreases with the increase in the maximum coarse aggregates size. Bhiskshma and Florence [7] assessed the effect of size in higher grade concrete using high volume fly ash and found out that maximum size of coarse aggregates of 12.5mm gave the highest compressive

Get Price### (PDF) Effect of Aggregate Size Distribution on

Effects of size distribution of both fine and coarse aggregate on compressive strength were analyzed in this study. Six different sizes of coarse aggregates were used while developing a mix design.

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