
The theoretical compressive strength of concrete is eight times larger than its tensile strength.This implies a fixed relation between the compressive and tensile strength of concrete.In fact there is a close relation but not a direct proportionality.The ratio of tensile to compressive strength is lower for higher compressive strengths.

Compressive strength of blast furnace slag concrete with different dosage of slag was studied as a partial replacement of cement.From the experimental investigations, it has been observed that, the optimum replacement of ground granulated blast furnace slag powder to cement without changing much the compressive strength is 15.

And fresh water on the compressive strength of concrete, concrete cubes were made, in which some of concrete cubes were casted and cured with fresh water and remaining concrete cubes were casted and cured with sea water.The amount of salt nacl used in.

Compressive and flexural strength for both m20 and m30 grade of concrete.Also there is a very little change in 28 days compressive strength with all accelerators for both m20 and m30 grade of concrete.

According to mesoscale analysis on dynamic compressive behavior of concrete performed by huang et al., the enhancement of compressive strength of concrete was mainly contributed by both the mesostructure of concrete and the lateral inertial confinement that can be considered in 3d modeling approach.Moreover, it had been pointed out that the significant difference between 2d and 3d.

The effects of silica fume sf on compressive strength of concrete have been analyzed.The compressive strength results of concrete mixed over different waterbinder ratios as well as different replacing percentages of sf were analyzed.The results of the experiments showed that when the polymerbinder materials ratio increases, the compressive strength of concrete decreases.

Effect of cementwater ratio on compressive strengthand density of concrete.Mohammed abas abdela salema b 1department of civil engineering, sam higginbotom institute of agriculture technology sciences, allahabad ,.

966 effect of rebar on compressive strength.Cores and sawed beams of concrete astm c 42 shall be permitted 1,3,4.If by structural analysis, again it can not be accepted, ordinary solution to accept.

Effect on compressive strength of concrete made with crusher.A study on the effect of size of aggregate on the an experimental analysis on the effects of manufactured an experimental study on compressive strength of quarry an experimental study on high performance concrete combine effect of rice husk ash and silica fume with glass concrete mix design by crusher dust concrete mix design with.

This rule of thumb was developed from research on normal strength concrete, but there is little data on the strength reduction due to entrained air in high performance concrete.The paper presents compressive strength test results of several high performance concrete mixtures with total air contents ranging from two to six percent.

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.

That the moisture content in concrete does have a significant effect on the compressive strength of concrete, but has a much lesser effect on the split tensile strength.As the specimen degrees of saturation increased, the compressive strength fell.However, at nearly saturated condition, an increase in compressive strength can be found.

Effect of specimen shape and size on the compressive strength of foamed concrete m.A.S.Sudin1, m.Ramli2,a 1,2 school of housing, building and planning, universiti sains malaysia, 11800, penang, malaysia abstract  lightweight concrete, in the form of foamed concrete.

Effect of curing methods on the compressive strength of concrete t.James, a.Malachi, e.W.Gadzama, v.Anametem oka department of civil engineering, federal university of technology yola, nigeria.

Sive strength of cylindrical concrete specimens with size, but up until now, an adequate analysis technique has not been developed.In this paper the fracture mechanics type size effect on the compressive strength of cylindrical concrete specimens was studied, with the diameter, the heightdiameter ratio, and the.

Abstract the study centered on the effect of different qualities of water on concrete compressive strength.The concrete mix of m20 grade with water cement ratio of 0.5 were investigated.Water samples, such as tap water, waste water, well water, bore well water mineral water packed drinking water were.

The use of rca did not have a significant effect on the rate of concrete compressive strength or stiffness gain, but it did have a small effect on the strand bond strength.For the materials tested, rca from precast concrete performed better than rca from returned readymixed concrete and demolished concrete.

Concrete and to see the effect of fly ash inclusion in ppc concrete.The compressive strength of ppc replaced fly ash concrete was compared with the compressive strength of conventional ppc concrete.Materials and methods experimental design in order to study the effect of fly ash as partial cement replacement on the strength of concrete, 63.

Well known as the size effect, the strength of a member tends to decrease when its size increases.Therefore, in view of recent increased interest in the size effect of concrete this research focuses on the size effect of two main classes of compressive strength of concrete pure axial compressive strength and flexural compressive strength.

Cement and concrete research 31 2001 105 112 the effect of high fly ash content on the compressive strength of foamed concrete e.P.Kearsleya, p.J.Wainwrightb, a b department of civil engineering, university pretoria, pretoria 0001, south africa.

Salahaldein alsadey 1, muhsen salem2 et,al,2016 to study the effect of polypropylene fiber on compressive strength of concrete,the experimentation is conducted in the laboratory.Based on the experimentation conducted , on the cube with different percent of polypropylene fiber the following some conclusions were drawn.1.The reduction of slump.

This has necessitated the need to check the effect admixtures have on some properties of concrete.This study investigated the effect of calcium chloride cacl2 as an admixture on the compressive strength of concrete produced from dangote, elephant and burham brands of cement available in nigeria.