effect of compressive strength in concrete

(PDF) Effect of Concrete Compressive Strength and Compress…

Compressive Strength of Concrete and Concrete Testing ...

Pure rate effect on the concrete compressive strength in ...

2018-3-1 · In this study, a new DIF for the concrete compressive strength was suggested considering the pure rate effect through the elimination of inertia effects from the apparent DIF. First, a regression equation of the apparent DIF was formulated by considering the dominant influences on inertia effects in the SHPB test.

Application of size effect to compressive strength of ...

2019-4-9 · compressive strength of concrete, there are abundant experimental data from past studies to derive its size effect characteristic. However, for the case of flexural compressive strength of concrete, experiments must be performed to obtain sufficient data to study its size effect. 2. Theoretical investigation on size effect

Size effect in compressive strength of concrete ...

According to the test results, the size effect in the concrete strength was closely related to the ratio of the diameter of specimen to that of aggregate (D/d). The compressive strength of river sand and gravel concrete and glass ball concrete increases with the increase of the size of specimen provided that the value of D/d is smaller than ...

(PDF) EFFECT ON THE COMPRESSIVE STRENGTH OF …

The results showed that the compressive strength of foamed concrete containing 5%, 10%, 15% and 20% of pelletized coconut fibre aggregate are …

Effect of curing on the compressive strength development ...

2015-9-30 · Rate of strength development of geocement concrete under ambient and accelerated curing conditions is important to the construction industry. This paper reports the results of an experimental investigation into the development of compressive strength with age for Grades 40, 50, 65 and 80 geocement concretes subjected to ambient (20 °C) and accelerated (70 °C for 4 …

(PDF) Effects of Graded Concrete on Compressive Strengths

The compressive strength of concrete was designed to achieve grade 40 N/mm 2 at 28 days. A superplasticizer was added to all mixes to provide workability in …

Application of size effect to compressive strength of ...

First, fracture mechanics type size effect on the compressive strength of cylindrical concrete specimens was studied, with the diameter, and the height/diameter ratio considered as the main parameters. Theoretical and statistical analyses were conducted, and a size effect equation was proposed to predict the compressive strength specimens.

(PDF) Effect of Concrete Compressive Strength and ...

In this paper the effect of increasing the strength in the compression zone of reinforced concrete beams on ductility was investigated. Seven reinforced concrete beams …

Effects of specimen sizes and loading rates on compressive ...

2021-1-1 · The effects of these factors were studied in this research in order to fully determine the approach on finding any limitations that could affect the necessary concrete compressive strength . Dehestani et al. [2] attributed the origination of size effect from nonlinear fracture of concrete and other similar composite materials.

Size and shape effects on compressive strength of ...

2013-1-1 · The effect of the lateral size and shape (section shape and aspect ratio) of a specimen on the concrete compressive strength was examined according to the unit weight of concrete ranging between 1551 and 2314 kg/m 3. Based on crack band theory, new mathematical equations to predict the concrete compressive strength according to different sizes ...

(PDF) Effect of Concrete Compressive Strength and ...

Effect of Concrete Compressive Strength and Compression Reinforcement in Compression Zone on the Ductility of Reinforced Concrete Beams

Effect of nano metakaolin on compressive strength of ...

2020-9-30 · The compressive strength test block of recycled concrete formed in this experiment was the cubic specimen with a side length of 100 mm. The design strength of concrete was C30, and the water cement ratio was designed to be 0.55 according to the design code of ordinary concrete .The cement was replaced in equal mass by nano metakaolin, and its contents were …

(PDF) Effect of Compressive Strength on Concrete in Hot ...

Concrete mix design by ACI method is popularly used in Bangladesh for producing concrete of required strength, but for determining its compressive strength one …

Effect of elevated temperatures on compressive strength …

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.

Compressive Strength of Concrete and Concrete Testing ...

2021-9-25 · 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 ...