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The water/concrete ratio, not mixing it well enough, quality of raw materials, the age of the concrete, and the temperature and humidity of the area surrounding the concrete.

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What effect has the quantity of mixing water have upon the quality of concrete?

the strength of concrete is effected by water /cement ratio as the water/cement ratio increases the strength of the concrete decreases


What is the strength of steel reinforced concrete?

The reinforcment will have little or no effect on compressive strength. It will however impact tensile strength. It depends on the concrete mix design and amount of reinforcment, what the tensile strength impacts will be. The question needs to be a lot more detailed to provide a specific answer.


What is size effect in concrete?

The size effect in concrete refers to the phenomenon where the strength and behavior of concrete structures vary with their size. Generally, larger concrete elements tend to exhibit lower strength and increased brittleness compared to smaller ones due to the statistical distribution of flaws and defects within the material. This effect is particularly significant in tension, where larger structures may fail at lower stress levels than smaller counterparts. Understanding the size effect is crucial for ensuring safety and reliability in the design of concrete structures.


What would be the effect of a concrete beam if the cover provided becomes more than specified?

strength will be reduced


What is tensile strength of concrete?

The tensile strength of concrete is 10% of it's compressive strength.


Is the characteristic strength of a concrete the same as the compressive strength?

Yes, the characterisrtic strength of a concrete is the same as the compressive strength


How does the moisture affect the strength values of concrete?

the moisture of concrete is main strength for reinforced concrete structure


What is the effect of hydration on strength of a concrete?

Excess water (over hydration) causes weak concrete. The water in concrete is there to start a chemical process which results in the hardening process. The excess water is not used in the chemical process and results in a weakened concrete.


What is the relation between tensile strength and compression strength in concrete?

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What has the author Nedim Alca written?

Nedim Alca has written: 'Effect of size on flexural behaviour of high-strength concrete beams' -- subject(s): Concrete beams, Testing, Flexure


What has the author Duff Andrew Abrams written?

Duff Andrew Abrams has written: 'Quantities of materials for concrete' -- subject(s): Concrete, Tables 'Effect of curing condition on the wear and strength of concrete' -- subject(s): Concrete 'Tests of bond between concrete and steel' -- subject(s): Reinforced concrete 'Effect of vibration jigging and pressure on fresh concrete' -- subject(s): Concrete 'Test of a 40-foot reinforced concrete highway bridge' -- subject(s): Bridges


What is high strength concrete?

Concrete with compressive strength more than 55 MPa is known as high strength concrete.It is used in the construction of bridges, dams. etc.,High strength concrete is produced by adding normal constituents of concrete with admixtures.