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The variation of compressive strength of concrete mix with different proportion of barites as partial re-placement of coarse aggregate and Anti radiation of concrete with variation in percentage ...

Compressive strength of concrete cube test provides an idea about all the characteristics of concrete.By this single test one judge that whether Concreting has been done properly or not. Concrete compressive strength for general construction varies from 15 MPa (2200 psi) to 30 MPa (4400 psi) and higher in commercial and industrial structures.

Estimation of compressive strength of high-strength concrete with recycled aggregate using non-destructive test and numerical analysis Y. S. Cho1, S. K. Baek1, Y. T. Lee2, S. H. Kim2 and S. U. Hong*2 The purpose of the study is to provide reliable data on high-strength recycled aggregate concrete

Tests were carried out to study the effect of the type of coarse aggregate on the compressive, flexural and splitting tensile strength on concrete produced at different strength levels.

Dec 31, 2018· Concrete compressive strength analysis using a combined classification and regression technique. ... Development of high-performance heavy density concrete using different aggregates for gamma-rays shielding. Housing and Building National Research Center HBRC J, …

Shape And Size Effect On Concrete Strength. Aggregates shape and size has a strong influence on properties of concrete. Rough surface textured particles increase the compressive strength of concrete up to 20-30%, instead of using natural gravels that is obtained from river beds.

Sep 05, 2013· Concrete Cube Test Method OR Compressive Strength Test of Concrete Formula with Procedure. ... Silt Content in Fine Aggregate - Duration: 8:31. ... Sieve Analysis of Coarse Aggregate - Duration: ...

Experimental Study of Compressive Strength of Recycled Aggregate Concrete - written by Yati R. Tank, Jigar P. Parmar, Darpan H. Gadhiya published on 2014/04/25 download full article with reference data and citations

on compressive strength of concrete. Compressive Strength of Concrete, f'c Concrete Technology 14 2.4a) Influence of Mineralogy Differences in the mineralogical composition of aggregates affect concrete strength. fc 1000 psi The reason for limestone to produce higher strength is because CaCO3.Ca(OH)2.xH2O is formed at interface in TZ.

This chapter has been prepared with the hope that its readers will become interested in lightweight concrete (LWC). Therefore, after a brief background of lightweight concrete, different types of LWC will be introduced and then LWC made of lightweight aggregates (LWA) will be specifically discussed. Compressive strength and density of LWC are the main points of interest in this chapter.

May 11, 2019· This work was obligated to present in one. The fundamental and practical information in the filed of the comparative analysis of the strength of concrete made from various aggregate which may be useful to people involve in civil and structural engineering and particularly, those that found pleasure in the design and related structure.

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.

Depending on the aggregate, differences of 40 percent in flexural strength and 29 percent in compressive strength were obtained for concrete of the same mix proportions. Statistical analysis indicated that the shape, surface texture, and modulus of elasticity of the aggregates were the main causes of variation in concrete strength.

Figure 6: Compressive strength of concrete The models for compressive strength of concrete as a function of the age at curing for different aggregate types are shown in Figure 6. The regression output is shown in Table 3. For concrete made from quartzite aggregate, the adjusted coefficient of determination (adjusted R2) is very high, about 0.9779.

May 14, 2015· Compressive strength Cubes (150 mm × 150 mm × 150 mm) were tested for compressive strength according to (ASTM 2011a) at 3, 7, 14, 21, and 28 days, strength development with time is shown in Fig. 8. Compressive strength of concrete produced with the recycled aggregate was in the range of 41 to 52 MPa. Mix 4 had the lowest compressive strength.

The compressive strength of concrete depends on the water to cement ratio, degree of compaction, ratio of cement to aggregate, bond between mortar and aggregate, and grading, shape, strength and size of the aggregate (Roccoand Elices, 2009; Elices and Rocco, 2008).

Normal concrete is being produced from different types of aggregate and this imparts different property to the resulting concrete. The most important property of concrete is its compressive strength.

Study of recycled concrete aggregate quality and its relationship with recycled concrete compressive strength using database analysis This work studies the physical and mechanical properties of recycled concrete aggregate (recycled aggregate from concrete waste) and their influence in structural recycled concrete compressive strength.

Jun 10, 2019· The aggregate size is an important factor influencing the compressive strength of pervious concrete. This work is focused on the study of the relationship among aggregate size, compressive strength, pore structure, cementitious paste thickness, and then understanding the influence of aggregate size on the compressive strength of pervious concrete.

The compressive strength trasonic pulse velocity was measured according to ASTM C 597 [19] and ultrasonic pulse velocity tests were carried out on the hardened before the test samples were subjected to the compressive strength test. concrete samples produced with different surface roughness values of aggregate.

aggregate sizes on the compressive strength of concrete. Ruiz (1966) found that the compressive strength of concrete increases with an increase in coarse aggregate content until a critical volume is reached, while Bayasi and Zhou (1993) found little correlation between compressive strength and coarse aggregate content.

This research, comparison of compressive and flexural strength of concrete made from different coarse aggregates written in accordance to British standard. The different sizes of coarse aggregates used are; 10mm, 12 mm and 20mm. These aggregates were used to produce concrete cubes (150mm x 150mm x 150mm) and beans (150 x 150mm x 150mm).

Sep 03, 2014· When we design mix the concrete, its target strength is much less than the compressive strength of the aggregates used in the formation. It can also be clearly seen in the mix design procedure that greater the maximum size of coarse aggregate use...

May 07, 2019· ABSTACT. This report studied the comparative analysis of concrete made with two different type of aggregate. The utilization of two different types of coarse aggregate was investigated by testing and comparing their compressive strength.

81 concrete prism specimens under axial compression were tested to invesgigate the size effect on the axial load stength. Three different kinds of specimens with the dimension 100×100×300mm, 150×150×300mm, 200×200×400mm were tested. The parameters including compressive strength of concrete and aggregate composition are taken into consideration.

May 18, 2018· Concrete being the major consumable material after water makes it quite inquisitive in its nature. The strength of concrete is majorly derived from aggregates, where-as cement and sand contribute binding and workability along with flowability to concrete.. This is an in-depth article on Compressive Strength of Concrete.

The compressive strength of concrete depends on the water to cement ratio, degree of compaction, ratio of cement to aggregate, bond between mortar and aggregate, and grading, shape, strength and size of the aggregate (Roccoand Elices, 2009; Elices and Rocco, 2008).

Normal strength concrete made with basalt and gravel gave similar compressive strength while the concrete containing limestone 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).

Jun 30, 2018· The compressive strength of recycled concrete is closely related to these factors such as sand rate, water-cement ratio, aggregate grade, aggregate type and substitution rate, mineral fine admixture variety and dosage, .

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.