2 Effect of Air Entrainment on Flexural Strength of Concrete Generally, the influence of air entrainment on flexural strength of concrete is not as detrimental as in the case of concrete compressive strength It is reported that, maximum flexural strength can be achieved even with air contant of 4%...
In this research an attempt is made to study the effect of waste glass power in Concrete using waste glass, which is non biodegradable and not suitable to landfill , Results and discussion 51 Compressive Strength of concrete cube Concretes containing glass powder as fine aggregates, with a mixing ratio of 5%, 10%, 15%, 20%, 25%, 30%, 35% ....
The application of nanotechnology in concrete has added a new dimension to the efforts to improve its properti Nanomaterials, by virtue of their very small particle size can affect the concrete properties by altering the microstructure This study concerns with the use of nano silica of size 236 nm to improve the compressive strength of concrete...
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 05 were investigated Water samples, such as tap water, waste water, well water, bore ,...
Effect of Cube Size on the Compressive Strength of Concrete 1Misba Gul, 1Assistant Professor 1Department of Civil Engineering 1Islamic University of Science & Technology, Awantipora, India _____ Abstract - In this paper the influence of the size of the cube specimens on the compressive strength of concrete has been investigated...
The specification for the floor of a maintenance building called for a 6-inch slab thickness and concrete with a design compressive strength of 3000 psi The actual average cylinder strength for the floor concrete was 3630 psi Four months after the floor was placed, 10 cores were drilled, measured, and tested in compression...
Shape and size effects on the compressive strength of high-strength concrete Author links open overlay panel JR , In this paper we investigate the influence of the shape and of the size of the specimens on the compressive strength of high-strength concrete , This size effect on the compressive strength manifests that the specimen is not ....
What is the effect of coarse aggregate size in compressive strength of concrete? Update Cancel a d b y S t e s s a , greater the compressive strength of concrete But this is valid only up to a certain limit, after which, the compressive strength of concrete starts to decrease as the MSA increas , to take into account all the effects ....
Compressive strength after 28days Figure 5 Concrete compressive strength decrease at the age of 3 days compressive strength is 1116% iv When the clay content in aggregates is 7% the loss of compressive strength is 1439% v When the clay content in aggregates is 10% the loss of compressive strength is 1808%...
Title: Effect of Curing Condition on Compressive Strength of Fly Ash Geopolymer Concrete Author(s): Hongen Zhang, Xiaoshuang Shi, , Additionally, the compressive strength of the 5HWC series is higher than that of the HSC series but lower than that of the 5HSC series, which indicates that cement will weaken the negative effect of wet curing ....
Plot of Compressive Strength of Concrete vs Cemen-Water Ratio Fig 2 Plot of Compressive Strength of Concrete vs Age Fig 3 Effect of Cement-Water Ratio on Density of Concrete Cement-Water Ratio (kg/cm 2) 13 135 14 145 15 155 16 165 17 175 18 75 100 125 150 175 200 225 250 275 7 days after casting 14 days after casting 28 days ....
Size and Shape Effects on the Compressive Strength of High Strength Concrete JR del Viso, JR Carmona & G Ruiz, , In this paper we investigate the influence of the shape and of the size of the specimens on the compressive strength of high strength concrete , This size effect on the compressive strength manifests that the specimen is ....
A Concrete Compressive Strength According to the different used temperatures the values of compressive strength are obtained of specimens confined with different shapes of CFRP and unconfined specimens The values of compressive strength are ,...
effect on the compressive strength of the lateritic concrete mix This is in contrast to the performance of the concrete mixes which shows consistent decrease of compressive strength in water-cement ratio Also, the degrees of workability of both concrete ,...
The compressive strength of concrete is given in terms of the characteristic compressive strength of 150 mm size cubes tested at 28 days (fck) The characteristic strength is defined as the strength of the concrete below which not more than 5% of the test results are expected to fall...
Fresh concrete properties were evaluated through slump test and properties of hardened concrete were found through compressive, flexural and split tensile strength test...
study to quantify the effect of cold tempera-ture exposure on concrete compressive strength development A nominal 4000-psi air-entrained concrete mixture was prepared and a total of 32 4 x 8-inch cylinders were made and cured in various conditions imme-diately after casting...
the compressive strength and workability of concrete with manufactured and natural sand in varying proportions The results show that concrete with manufactured sand shows higher A huge amount of concrete is consumed by the construction industry About 35% volume of concrete is comprised of sand...
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...
3 Compressive Strength of Concrete The quality of concrete is judged largely on the strength of that concrete Strength is usually the basis for acceptance or rejection of the concrete in a structure A deficiency in the strength of concrete can lead to expensive and difficult repairs or at worse a failure of the structure Concrete is an ....
42 Compressive Strength To study the 3, 7 and 28 days compressive strength of concrete mixes, three concrete cubes for each day were casted and tested in a set itself The cube specimens were of size 150 mm x 150 mm x 150 mm and were prepared and tested according to IS: 516-1959...
Effect of superplasticizer dosages on compressive strength of self compacting concrete Rahul Dubey, Pardeep Kumar International Journal of Civil and Structural Engineering Volume 3 Issue 2 2012 362 determination of compressive strength in accordance with Indian Standards IS 516 (1959)...
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 ,...
The effect of sea water on compressive strength of concrete aiso resulted in some rather unusual curves of strength versus salinity of mixing water 1 Conse- quently, these tests were repeated with the same brand and type of cement except...
The Effects of Higher Strength and Associated Concrete Properties on Pavement Performance PUBLICATION NO FHWA-RD-00-161 JUNE 2001 , The Effects of Higher Strength and Associated Concrete Properties on Pavement Performance 6 Performing Organization Code 7 , 53 Effect of Increasing Compressive Strength on the Splitting Tensile...
while mix No4 shows an increase of 4 and 10% in compressive strength at 7 and 28 days where there is a reduction in the strength at 90 days by about 2% Generally, as the size of specimen decreases, the effect of temperature curing (g roup C)on the compressive strength increas Keywords: curing ,compressive strength, concrete ,high strength 1...
The strength of the concrete depends upon many factors like individual compressive strength of its constituents (Cement, Sand, aggregate), quality of materials used, air entrainment mix proportions, water-cement ratio, curing methods and temperature effects...
The Effect of Sea Water on Compressive Strength of Concrete Olutoge, F Adeyemi1 and Amusan, G Modupeola2 , The effect of sea water on concrete was first discussed in 1840 by J Smeaton and L J Vicat Their two-year , water on the compressive strength of concrete with a view of producing durable marine concrete structur...
The Effect of Aggregate Properties on Concrete Concrete is a mixture of cementious material, aggregate, and water Aggregate is commonly considered inert filler, which accounts for 60 to 80 percent of the volume and 70 to 85 percent of the weight of concrete...
The Effect of Sea Water on Compressive Strength of Concrete , Concrete's compressive strength is generally used as a measure , the effects of mixing and curing concrete with seawater on the ....