Effect on Compressive Strength of Concrete by Addition of

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Effect on Compressive Strength of Concrete by

1) The addition of polypropylene fiber increases the compressive strength by 6.0% with 0.25% of fiber than starts decreasing with increase in fiber. 2) High quantities of fiber produce concrete with poor workability and segregation, higher entrapped air and

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(PDF) IRJET- EFFECT ON COMPRESSIVE STRENGTH OF

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 Sep 2019 irjet p-ISSN: 2395-0072 EFFECT ON COMPRESSIVE STRENGTH OF CONCRETE BY ADDITION OF POLYPROPYLENE FIBER IN M20 GRADE OF CONCRETE Er Haresh Kumar1, Gursharan Singh2 1H.

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Effect on Compressive Strength of Concrete by Partial ...

2017-2-10  Shantmurti Upadhyaya studied the effects of fly ash on compressive strength of M20 mix design concrete and found that till the addition of fly ash upto 10%, there is negligible change in the strength of concrete. It was also observed that at the replacement till 30%, fly ash blocks have shown very low compressive strength in comparison to concrete containing no fly ash. Blocks containing fly ash were lighter in weight than the concrete block containg no fly ash.

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Effect of microsilica addition on compressive strength

2010-4-18  Generally, the use of microsilica or fine rubber mixed with microsilica as aggregate replacement of 5% by volume improved the compressive strength of concrete processed at a temperature of 150°C. The addition of coarse rubber did not achieve any increase in strength when used as an aggregate replacement at any percentage. Moreover, the reductions in the compressive strength of concrete

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Effect on Addition of Nano “Titanium Dioxide” (TiO ) on ...

• Compressive Strength Added various proportions of titanium dioxide in concrete and increase the compressive strength of concrete. It was observed from the figure 7. The Maximum increase in compressive strength of concrete was observed with 1% used TiO 2, both at 7 and 28 days. E ect on Addition of Nano Titanium Dioxide.....

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Effect of seawater on compressive strength of

2002-12-1  Because of outstanding properties of the composite, the strength of a concrete cylinder was increased even by the hand-wrapped composite due to confinement force. Water absorption can be detrimental to fatigue strength of composites. The reduction of fatigue strength was caused by the degradation of both fiber and matrix.

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EFFECT OF NANO SILICA ON THE COMPRESSIVE

2017-8-11  From the compressive strength results, it can be observed that increase in compressive strength of concrete is observed on addition of a certain minimum quantity of Nano SiO2. The increase in

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Effect of elevated temperatures on compressive

2019-12-30  Numerous researchers have noted that temperature can affect the compressive strength of concrete because of changes in the porosity. Vodák suggested that the compressive strength decreases with an increase in porosity based on tests of the strengths and porosities of concrete after drying at temperatures ranging from 25 °C to 280 °C.

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The effect of temperature on the compressive

2020-1-22  Summary. As part of an investigation on the effect of temperature on the crushing strength of concrete, tests have been carried out using 2 in. diameter by 4 in. long specimens made with ordinary Portland cement, river sand and gravel aggregate, having various mix

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Effects of specimen sizes and loading rates on

2021-1-1  They also proposed the effects on concrete compressive strength due to size may possibly be affected by the magnitude of adhesion and spaces between the cement paste and aggregates as well as the initiation of cracking in the local zones of failure.

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Effect of Addition of Alccofine on the Compressive ...

“Effect on Compressive and Flexural Strength of High - Performance Concrete Incorporating Alccofine and Fly ash”. International journal of Civil, Structural, Environmental and Infrastructure Engineering 3, no. 4 (April 2013): 109-113.

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Effect on Compressive Strength of Concrete by Partial ...

2017-2-10  ash ultimate compressive strength of concrete decreases. Rahul Bansal [7] studied the effect on compressive strength with partial replacement of fly ash and found that by 10% replacement of cement by fly ash, 20% and 50% decrease in compressive strength was observed at the age of 7 and 28 days respectively. At 20% replacement, 7% and

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Effect of microsilica addition on compressive strength

2010-4-18  Results confirmed that the recipe and processing temperature of concrete cubes influence the compressive strength values. Generally, the use of microsilica or fine rubber mixed with microsilica as aggregate replacement of 5% by volume improved the compressive strength of concrete processed at a temperature of 150°C. The addition of coarse ...

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Effect of moderate temperatures on compressive

2021-2-1  The addition of PPFs improved the compressive strength because there were more cracks generated (as a result of the high pressure in the matrix) in concrete for the UHPFRC mixture than in UHPFRC_PP. The microchannels produced by the melting fibres (PPFs) helped to dissipate the pressure, and this led to an improvement in the compressive strength.

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Effect of seawater on compressive strength of

2002-12-1  Table 4 shows the effect of material type on reduction of compressive strength of composite/concrete systems soaked in live seawater for 180 days. The lowest pure compressive strength of the F-GCG-W-L specimen in all fiber wound specimens is due to larger moduli mismatch and difference in failure strains between glass fibers ( E =72.4GPa, ϵ f ...

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Compressive Strength of Concrete and Concrete

2021-7-31  Effect of Duration of Water Curing on Strength of Concrete. There is a significant impact of water curing and time of curing in achieving the strength of the concrete. In addition, curing affects the durability of concrete. The effect of moist curing can be expressed as follows. Allowing concrete to dry out immediately achieve only 40% of the ...

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EFFECT OF NANO SILICA ON THE COMPRESSIVE

2017-8-11  i. From the compressive strength results, it can be observed that increase in compressive strength of concrete is observed on addition of a certain minimum quantity of Nano SiO2. The increase in strength is maximum for NS 1% b.w.c and least for NS 0.3% b.w.c. 225

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Effect of elevated temperatures on compressive

2019-12-30  Compressive strength tests were conducted to examine the mechanical properties of concretes after heating at different elevated temperatures. • The pore structures of concrete were characterized by mercury intrusion porosimetry (MIP) and N 2 adsorption.. During drying, the strength first decreased and then increased with a decrease in the moisture content.

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Effects of specimen sizes and loading rates on

2021-1-1  Dehestani et al. attributed the origination of size effect from nonlinear fracture of concrete and other similar composite materials. Gonnermann previously reported an inverse proportionality in the relationship between the specimen size and the compressive stress at failure in relation to compressive strength. A number of experiments have been conducted by different researchers in determining ...

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The effect of temperature on the compressive

2020-1-22  Summary. As part of an investigation on the effect of temperature on the crushing strength of concrete, tests have been carried out using 2 in. diameter by 4 in. long specimens made with ordinary Portland cement, river sand and gravel aggregate, having various mix

Get price

Effect of Addition of Alccofine on the Compressive ...

“Effect on Compressive and Flexural Strength of High - Performance Concrete Incorporating Alccofine and Fly ash”. International journal of Civil, Structural, Environmental and Infrastructure Engineering 3, no. 4 (April 2013): 109-113.

Get price

Compressive Strength of Concrete and Concrete

2021-7-31  Effect of Duration of Water Curing on Strength of Concrete. There is a significant impact of water curing and time of curing in achieving the strength of the concrete. In addition, curing affects the durability of concrete. The effect of moist curing can be expressed as follows. Allowing concrete to dry out immediately achieve only 40% of the ...

Get price

EFFECT OF NANO SILICA ON THE COMPRESSIVE

2017-8-11  i. From the compressive strength results, it can be observed that increase in compressive strength of concrete is observed on addition of a certain minimum quantity of Nano SiO2. The increase in strength is maximum for NS 1% b.w.c and least for NS 0.3% b.w.c. 225

Get price

The Effect of Admixtures on Concrete Properties

2017-4-19  The Effect of Admixtures on Concrete Properties ... − Increase the compressive strength by adoption super plasticizers admixtures which increase the workability and hence the strength is ... Crushing strength of concrete containing admixtures as compared to ordinary mix , grade 15 88

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The Effect of Micro-Silica on Compressive Strength in ...

2021-6-22  Today, in addition to the basic ingredients of concrete, aggregate, cement, and water, other materials are often used in concrete, and are commonly called concrete admixtures. One of the admissible admixtures for high strength concrete is micro-silica gel admixture with a combination of polycarboxylate ether (PCE)-based super-plasticizer.

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EFFECT OF REBAR ON COMPRESSIVE STRENGTH OF

2009-11-11  CD06-011 EFFECT OF REBAR ON COMPRESSIVE STRENGTH OF CONCRETE CORES M. Tadayon1, H.T.P Moghadam2, M.H. Tadayon3 1Associate professor, Civil Eng. Dept., Engineering Faculty, Bu-AliSina University, Hamedan, Iran 2Graduate of Iran University of Science and Technology Civil Engineering Faculty, Tehran, Iran 3M.S. Student, Dept of civil Eng., Engineering Faculty,

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Application of size effect to compressive strength of ...

It is important to consider the effect of size when estimating the ultimate strength of a concrete member under various loading conditions. 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 ...

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(PDF) Effect of Compaction on Assessed Concrete

The effect of compaction on concrete core strength is clearly seen in Figure 5 which shows the relative core strengths. The ratio of strength of cores removed from concrete beams produced without compaction to that of cores removed from beams consolidated by vibrator was found to be 0.89.

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The effect of temperature on the compressive

2020-1-22  Summary. As part of an investigation on the effect of temperature on the crushing strength of concrete, tests have been carried out using 2 in. diameter by 4 in. long specimens made with ordinary Portland cement, river sand and gravel aggregate, having various mix

Get price

Compressive strength of core specimens drilled from ...

2020-10-17  They concluded that the effect of the drilled surface was most significant theory for the size effect on the compressive strength of concrete. 2.5 Moisture content. Concrete cores are mostly tested in air-dried moisture condition, while the molded 150

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