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The investigation results indicated that the compressive strength, MOE, digital rebound hammer number, ultrasonic pulse velocity, and electrical resistivity …
PDF | On Jan 1, 2010, M.S MEDDAH and others published Effect of Size and Content of Coarse Aggregate on the Compressive Strength of Concrete | Find, read and cite all the research you need on ...
The main objective of this research is therefore to evaluate the influence of replacing natural fine and coarse aggregate on the 3-, 7- and 28-day compressive strength of concrete using machine ...
In this study effect of coarse aggregate size and gradation on workability and compressive strength of concrete was investigated. A mix ratio of 1:2:4 with a target strength of 20/25MPa, was ...
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 …
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.
Coarse aggregate content; Fine aggregate content; Adjustments for aggregate moisture; ... Pavement PCC maximum aggregate sizes are on the order of 25 mm (1 inch) to 37.5 mm (1.5 inches) (ACPA, 2001{{2}}). ... Water-Cement Ratio and Compressive Strength Relationship (after ACI, 2000 [1])
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 …
Effect of varying coarse aggregate size on the flexural and compressive strengths of concrete beam was investigated. Concrete cubes and beams were produced in accordance with BS 1881-108 (1983) and ASTM C293 with varying aggregate sizes 9.0mm, 13.2mm, 19mm, 25.0mm and 37.5mm, using a standard mould of internal dimension …
The relationship between compressive strength and the change in the maximum size of coarse aggregate with constant fineness modulus of sand and varied cement content (For normal strength concrete)
compressive strengths, while in normal-strength concretes; coarse aggregate strength has little effect on compressive strength. While Özturan and Çeçen (2007) compared the effects of limestone ...
The MKGP concrete results yielded a decrease in compressive strength values as the coarse aggregate size increased. The results are consistent with the study by Guades, showing the effect of aggregate size variation on the compressive strength of the GPC under ambient temperature. The considerable decrease of compressive …
Compressive strength of cubes is 21.26N/mm 2, 23.41N/mm 2, 23.66N/mm 2, and 24.31N/mm 2 for coarse aggregate sizes 13.2mm, 19mm, 25.0mm and 37.5mm respectively.
The toughness and dynamic compressive strength increase with the increased maximum coarse aggregates size, while the values of DIF and peak strain decrease with the rising maximum coarser aggregates size.
A string of compressive tests on normal strength concrete and high strength concrete with maximum aggregate sizes of 10 mm and 20 mm conducted by Su and Cheng (2013) concluded that normal strength concrete with compressive strength lower than 60 MPa, larger maximum aggregate sizes would yield a lower compressive strength, but for …
With a 20 mm maximum coarse aggregate size, 25% laterite soil in fine aggregate yielded a compressive strength of 22.1 N/mm 2, aligning with the findings of Salau and Busari 13, and Ata 70.
Compressive strength of HSFRC with coarse aggregate generally decreases with increasing cube size. However, the higher is the expected compressive strength of the material, the lower is the size effect.
This paper investigates the effects of steel fiber content and coarse aggregate size on the mechanical properties of high-strength concrete with a specified compressive strength value of 60 MPa. The paper also explores the correlation between the compressive and flexural toughness of high-strength steel fiber-reinforced …
Bhikshma and Florence (2013) found that aggregate sizes influence its strength and that maximum size of coarse aggregate of 12.5 mm gave the highest compressive strength, …
PDF | On Sep 12, 2021, Sagar Chhetri and others published Effect of Coarse Aggregate Size Variation on Compressive Strength of Concrete along the Length of Seti River | Find, read and cite all the ...
It is evident from Table - 8 that the 7 days compressive strength of normally vibrated concrete was more than that of LVF SCC and HVF SCC .The % reduction in 7 days compressive strength of SCC mixes as compared with the reference mix for 20 mm, 16 mm, 12.5 mm and 10 mm size coarse aggregates was 19.35%, 16%, 16.38% and …
Download scientific diagram | The relationship between compressive strength and the change in the maximum size of coarse aggregate with constant fineness modulus of sand and varied cement content ...
Built Environment Journal Vol. 16 , 49 - 58, 2019 52 IMPACT OF COARSE AGGREGATE ON COMPRESSIVE STRENGTH OF CONCRETE 1 Jeriscot H. Quayson, MSc, 2 Zakari Mustapha, PhD School of Engineering, Department Building Technology P. O. Box AD. 50, Cape Coast. Ghana. E-mail: 1 [email protected] …
Compressive strengths ranged from 22.1 to 37.6 N/mm 2, flexural strengths from 4.07 to 5.99 N/mm 2 and split-tensile strengths from 2.93 to 4.30 N/mm 2. This …
Request PDF | Effect of Maximum Coarse Aggregate Size on Dynamic Compressive Strength of High-Strength Concrete | Dynamic increase factor (DIF) is a measure of the rate effect in the analysis and ...
Results showed an opposite coarse aggregate size effect between OPC and MKGP specimens in terms of compressive strength. SEM/EDS analysis indicated …
The optimum maximum coarse aggregate size for the best compressive strength of 28 day concrete was therefore found to be 8mm for the water/cement ratio of 0.63. The analysis further shows that as heterogeneity increases the compressive strength of concrete reduces. Keywords : Gneiss, compressive strength, aggregate sizes, slump, …
The results also shows that concrete made with coarse aggregate size of 12.50mm achieved the highest strength of 33.93 N/mm 2 after 28 days of immersion in water curing, while quarry dust has the ...
Woode et al., [16], investigated the strength ability of varying sizes of gneiss (10, 14,20mm) on compressive strength of concrete by which the result indicated that gneiss of maximum aggregate ...
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, …