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effect of compressive strength in concrete

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Strength of Concrete vs Grades of Cement

Thus for any project, it has become a difficult task to design a concrete mix. For making the process of designing a concrete mix less cumbersome, based on the present study, a minimum 7 day compressive strength of 250 kg/sq. cm is recommended for cements to be used for pavement quality concrete (PQC).

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Effect of Boron Active Belite Cement on the Compressive ...

48 Abdulkadir Cüneyt Aydın et al.: Effect of Boron Active Belite Cement on the Compressive Strength of Concrete Exposed to High Temperatures can be directly used in cement production without any pre-calcination operation.

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The Influence of Casting and Curing Temperature on the ...

compressive strength of concrete cast and cured at high temperature was lower than concrete cast and cured at 23°C (73"F). Concrete cast and cured at low temperature had initial strength lower than concrete cast and cured at 23°C (73°F). However, later age strength either equaled or exceeded that of concrete cast at 23°C (73"F).

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Effect of Dimensions on the Compressive Strength of ...

Moreover, disregarding the effect of the length of the prism provided significant errors in estimating the compressive strength. The conclusion was that the ASTM standard does not accurately evaluate the actual strength of concrete masonry. As a result, an immediate revision for reevaluating the compressive strength of masonry seems necessary.

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The Effect of Water Content on the Compressive Strength of ...

Laterized concrete is defined as concrete in which laterite fines replace sand. A previous paper highlighted only the salient points of difference between laterized and normal concrete. The results reported in this paper are mainly on the effect of water content on the compressive strength of laterized concrete.

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Effect of Hand Mixing on the Compressive strength of Concrete

The compressive strength of concrete depends on the aggregate grading, aggregate/cement ratio as well as the water/cement ratio. The freshly mixed concrete should be workable to be properly placed and the hardened concrete needs to be durable and attain a specific compressive strength [1].

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The Effect of Capping Condition on the Compressive ...

effect of capping and capping materials on the compressive strength of Concrete hollow blocks, while the effect of cylinder end condition prior to capping on strength test results has been reported by several authors [9-12] .

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Effect of Ngala Clay on the Compressive Strength of Concrete

The compressive strength of concrete depends on the water to cement ratio, degree of compaction, ratio of cement to aggregate, bond between mortar and aggregate, and grading, shape, strength and size of the ... (vertisol) were incorporated to examine the effect on concrete strength. The concrete cubes were casted using steel of 150 x 150 x ...

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"Effect Of Salt Water On Compressive Strength Of Concrete ...

Whereas water on compressive strength of concrete are seawater is considered as water containing high percentage of Sodium chloride. Only 2.5 Percent of determined. M-30 grade of concrete is used to the world's water bodies is said to be fresh water, the determining the effect of salt water.

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Effect of Sodium Chloride (Nacl) on Concrete Compressive ...

Effect of Sodium Chloride (NaCl) on Concrete Compressive Strength . Oladapo. S. A, Ekanem. E. B . Department Of Civil Engineering, The Federal Polytechnic, Ado-Ekiti, Nigeria. Abstract— In considering the effect of sodium chloride on the strength of concrete if added with the constituents of concrete

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Effect of Specimen Shape and Size on Compressive Strength ...

Failure patterns and the effect of specimen shape and size on compressive strength of concrete were investigated. In addition, theoretical size effect models, such as the MSEL and MFSL were used to analyze the size effect of concrete strength.

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Effect of strain rate on compressive behaviour of high ...

The effect of strain rate on the compressive behaviour of high-strength concrete (HSC) after exposure to elevated temperatures was experimentally investigated. 45 HSC prisms were heated up to 20, 200, 400, 600 and 800 °C.

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What is size effect and 0.67 times concrete compressive ...

The strength of concrete is measured by means of cube compressive strength. However, the actual structural members are not equal in size I.e. the height/ base area ratio is much higher than the cube on which compressive strength test is conducted. To account for this effect…

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Size effect in compressive strength of concrete ...

According to Eq.(2), the size effect in the compressive strength of concrete can be expressed by the product of the effect of D/d and the size effect in the compressive strength of mortar matrix. Hasofer [20], Mihashi [lO], and authors [21,22] have reported that the size effect in the strength based on stochastic theories is affected by the ...

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The Effect of Test Cylinder Size on Concrete Strength

The Effect of Test Cylinder Size on the Compressive Strength of Sulfur Capped Concrete Specimens ... The factors that were studied to evaluate the effect of cylinder size on concrete compressive strength were aggregate size, technician, compressive strength, and age of specimen at testing. ... 2.4 Factors that Affect the Compressive Strength of ...

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EFFECTS OF FLYASH ON COMPRESSIVE STRENGTH OF M50 …

Effects of Flyash on Compressive Strength of M50 Mix Design Concrete . SHANTMURTI UPADHYAYA . IN GUIDANCE OF Dr. R. CHANDAK . Abstract - The Ordinary Portland Cement (Opc) Is One Of The Main Ingrdients Used For The Production Of Concrete. Unfortunateluy Production Of

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Effect of Aggregate Content on the Concrete Compressive ...

Effect of Aggregate Content on the Concrete Compressive Strength - Ultrasonic Pulse Velocity Relationship. American Journal of Civil Engineering and Architecture, 4 (1), 1-5. Al-Nu'man, Bayan S., Bestoon R. Aziz, Sabr A. Abdulla, and Sirwan E. Khaleel.

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Effects of Silica Fume on Concrete Compressive Strength

The effects of silica fume (SF) on compressive strength of concrete have been analyzed. The compressive strength results of concrete mixed over different water–binder ratios as well as different replacing percentages of SF were analyzed.

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Effect Of Different Curing Methods On The Compressive ...

The study present the effect of different curing methods on the compressive strength of concrete using Portland cement and finally identifies the most effective curing process for normal concrete. MATERIALS AND METHODS Locally available crushed granite stones and fine aggregate (quartzite sand)were used as coarse and fine aggregate respectively.

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Effect of recycled concrete aggregates on strength and ...

the rate of concrete compressive strength or stiffness gain, but it did have a small effect on the strand bond strength. ... effect of RCA on the bond strength of deformed steel rein-forcing bars14-15 and on the 28-day strength and stiffness of concrete16-18 have been investigated.

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Size and Shape Effects on the Compressive Strength of High ...

Size and Shape Effects on the Compressive Strength of High Strength Concrete J.R. del Viso, J.R. 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 ...

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Effects of Superplasticizing Admixture on Properties of ...

the compressive strength of concrete. addition of superplasticizer not able to increase the compressive strength of concrete, on the other hand, it reduces the strenght significantly, and become worse when the dosages increase. The superplasticizer (SP), increase in dosage will increase the compressive strength.

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The Effect of Test Cylinder Size on Concrete Strength

The Effect of Test Cylinder Size on the Compressive Strength of Sulfur Capped Concrete Specimens ... The factors that were studied to evaluate the effect of cylinder size on concrete compressive strength were aggregate size, technician, compressive strength, and age of specimen at testing. ... 2.4 Factors that Affect the Compressive Strength of ...

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Effect of Accelerating Admixture on Properties of Concrete

extreme cases, effects of cold weather may make the concrete an absolutely useless friable mass. On the other ... 4.2. Hardened concrete 4.2.1. Compressive strength The compressive strength tests are presented in TABLE 2. Compressive strength tests, splitting tensile

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Size Effect and Strength Correction Factors for Normal ...

 · interpretation to elucidate the effect of aspect ratio and strength concrete level on ultimate compressive strength of concrete specimen with different aspect ratios and on the choice of the strength correction factor .The offered model clarify that the size effect vanishes if h but the specimens with h <

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Effects of Sand Quality on Compressive Strength of ...

Information on the effect of silt and clay content and organic impurities present in building sand being supplied in Nairobi County and its environs as well as their effect to the compressive strength of concrete was lacking.

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EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON …

The effects of aggregate type, size, and content on the behavior of normal and high-strength concrete, and the relationships between compressive strength, flexural strength, and fracture energy are discussed. The concrete mixtures incorporate either basalt or crushed limestone, aggregate sizes of 12 mm ('h in.) or 19 mm (:Y. in.), and

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Stone Dust in Concrete: Effect on Compressive Strength

the workability and compressive strength of concrete made using stone dust as partial replacement of fine aggregate in the range of 10% - . M25 grade of concrete was designed using Portland pozzolana cement (PPC) for referral concrete. Workability and Compressive strength were determined at

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Effects of Coarse Aggregate Size on the Compressive ...

Abdullahi M. Effect of Aggregate Type on Compressive Strength of Concrete. International Journal of Civil and Structural Engineering, 2(3), 2012, pp 791-800. DOI: 10.6088/ijcser.00202030008. Neetu and Rabbani A. Influence of size of aggregates on the Compressive strength of concrete.

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Properties of concrete - Wikipedia

Compressive strength is widely used for specification requirement and quality control of concrete. Engineers know their target tensile (flexural) requirements and will express these in terms of compressive strength.

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Size and shape effect of specimen on the compressive ...

The compressive strength test results for different size cubes and different size cylinders are shown in Table 8. The compressive strength of high performance lightweight foamed concrete is affected by the added fibres. The compressive strength increased with the glass fibres percentage increase.

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CIP 35 - Testing Compressive Strength of Concrete

The compressive strength of concrete is the most common performance measure used by the engineer in designing buildings and other structures. The compressive strength is measured by breaking cylin-drical concrete specimens in a compression-testing machine.

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