journals for crushed sand in concrete

The results of mix design indicate that crushed sand can also make as good a concrete as that made of natural sand.The compressive strength obtained is same as of normal mixes.In fact use of crushed sand will become inevitable in near future because of dwindling sources of natural sand. Crushed sand particle though shaped, does not have the

1. Introduction. Over the past 40 years, the use of sand concrete has become more and more common. Indeed, this material made from sand, cement, water and other admixtures tries to replace traditional common concrete in certain construction fields (bricks, cinder blocks, roughcasts, paving stones, low-stress structures, etc.), not only because of the rarity of gravel in certain areas, but also

The aim of this work is to reduce the overexploitation of river sand by proposing a combination of crushed sand and river sand to develop an optimal mix design for concrete. The approach used consisted of a physical, chemical, and mineralogical characterization of aggregates from three quarries located in Yaoundé (Cameroon), followed by the formulation of concrete by substituting 100%

gates (crushed stone and sand) withwater to cement ratioW/C= 0.55. Ten concrete mixes incorporating recycled ceramic aggre-gates were prepared in this study with the sameW/C ratio;five mixes incorporatingcoarse ceramic aggregate as partial substi-tute of

properties of crushed sand depend upon the type of rock and its source. The cost of crushed sand is less as compared to Natural sand and hence it becomes important factor to prepare economical concrete. 2. EXPERIMENTAL INVESTIGATION 2.1 Materials Used Cement – OPC 53 Grade, Alccofine 1203, GGBS, Crushed Sand and Natural Sand is used in this study

Artificial sand (Crushed sand): The crushed sand having fineness modulus of 2.84 and conforming to zone II as per IS: 383-1970 [5] was used for the experimentation after washing it with clean water. The specific gravity of this artificial sand was found to be 2.97. The water absorption and

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.

Is ceramic aggregate better than concrete?

The reference concrete mix was made withconventional coarse and fine aggregates (crushed stone and natural sand). Five mixes were prepared incorporatingcoarse ceramic aggregate as partial substitute of coarse aggregate with replacement levels of 10%, 20%, 30%, 40%, and 50%. Besides, five mixes incorporated fine crushed ceramic as partial

3. Santhosh Kumar.P.T et al made an attempt to study the effect of type of fine aggregate on the 28 day compressive strength of concrete. The result of the investigation indicate that the ratio of the 28 day compressive strength of concrete with crushed stone sand to that of river sand is 1.06 with a coefficient of variation of 11 %. III.

Crusher dust is a fine material formed during the process of comminution of rock into crushed stone or crushed sand. This dust is composed by particles which pass 75 μm BS sieve. Effects of dust content in aggregate on properties of fresh and hardened concrete are not known very well.

concrete made with RPA with red sand (i.e. RP1F1 C0.5 and RP2F1 C0.5) achieved the 342 targeted slump (75 - 100mm). Similarly, the slump of the RP1 group concretes was 21%, 9% 343

This study aimed to explore the possibility of utilizing crushed glass as an alternative fine aggregate for concrete by replacing concrete with crushed glass. Specifically, the study sought to assess whether there is a significant correlation between crushed glass volume in concrete and its compressive strength and also between sand volume in

International Journal of Civil all ages followed by concrete made from crushed palm kernel shell, crushed groundnut shell and saw dust respectively. conventional concrete made with sand

Indian Concrete Journal, vol 78, no 7, p 45 increases rapidly when the VFS replacement is more than 5 percent in natural sand concrete and more than 15 percent in crushed stone sand concrete

Crushed sand can be of coarser and angular texture. This can lead to more water and cement requirement to achieve the expected workability. Crushed sand contains a larger amount of micro- fine particles. This can affect the strength of concrete.

A. Mix proportioningTwo grades of concrete M20 and M25 having nominal mix proportion of 1:1.5:3 and 1:1:2 respectively were used by weight and w/c ratio was fixed according to the slump requirement of 60mm. For this concrete mix, quarry dust was added for replacement of sand from 0% to 100% in step of 10%.

This research consists of incorporating the crushed sand (CS) in the composition of a concrete and studies the effect of its gradual replacement by the sand dune (SD) on sustainability of high performance concrete (HPC) in aggressive environments. The experimental study shows that the parameters of workability of HPC are improved when the CS is partially replaced by the SD (<2/3). However

Basically, concrete is a manufactured product consisting of cement, aggregates, water and admixture. The composition of aggregates forms a major portion of the mixture consist ing of sand, crushed stones and gravel which are inert granular materials.

8/1 · In particular problems with concrete rheology are observed if crushed sand simply replaces natural sand with no special adjustments of either particle size distribution or mix design. From the aforementioned it is also obvious why most of the attempts to increase the quality of the crushed sand are aimed at improving particle shape, decreasing total fines

Crushed stone sand has been identified as a potential substitute material for natural sand in making good quality concrete. The main objective of the present investigation is to determine an adequate mix design method and evaluate engineering properties of crushed limestone sand concrete mixtures in both the fresh and hardened sates.