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What is soundness in cement?
what will be hapened if soundness and fineness more or less percentage presence in cement.
What is blaine of cement?
ANSWER In simple terms, the "blaine" is a measure of the particle size or fineness of cement.
Normal consistency of cement?
Consistency means amount of water needed to prepare a plastic mix.Consistency test is done using Vicat's appartus.Consistency of cement should be less than 30%consistency test is used to find the amount of water to be mixed with cement.It is necessary to find the consistency because amount of water present in the cement paste may affect the setting time.standard consistency is indicated by the vicat plunger reading (5 to 7) from the bottom of mould(IS 4031 (part 4)1988)
What is the importance of performing the experiment to determine the normal consistency of cement?
1. Measure the work-ability of cement. 2. Determining the quality test of cement.
Fine grained material used in cement?
The fineness of cement has an important bearing on the rate of hydration and hence onthe rate of gain of strength and also on the rate of evolution of heat. Finer cement offers agreater surface area for hydration and hence faster the development of strength.
Describe the factors affecting the normal consistency of cement?
Cement fineness: Finer cement particles generally require more water for standard consistency. Cement composition: Different types of cement with varying compositions can exhibit different normal consistencies. Curing temperature Time of testing Humidity Testing procedure Chemical admixtures
What is fineness of cement?
Portland cement (often referred to as OPC, from Ordinary Portland Cement) fineness 300 - 500 m2/kg
What are the factors that effects the normal consistency of a cement?
following factors which affects the consistency of cement:- 1. fineness of cement 2. temperature. 3. method of mixing water . 4. %of admixtures in cement (flyash in case of PPC) 5. w/c ratio
What is soundness in cement?
what will be hapened if soundness and fineness more or less percentage presence in cement.
What is blaine of cement?
ANSWER In simple terms, the "blaine" is a measure of the particle size or fineness of cement.
Normal consistency of cement?
Consistency means amount of water needed to prepare a plastic mix.Consistency test is done using Vicat's appartus.Consistency of cement should be less than 30%consistency test is used to find the amount of water to be mixed with cement.It is necessary to find the consistency because amount of water present in the cement paste may affect the setting time.standard consistency is indicated by the vicat plunger reading (5 to 7) from the bottom of mould(IS 4031 (part 4)1988)
What is the concistency of a cement paste?
consistency of cement 31- 33 %
What does the fineness of the cement indicate?
That indicates higher hydration rate of the cement , thus faster to achieve the desired resistance.
What is the importance of standard consistency test?
by standard consistency test we determine standard consistency of cement which is denoted by p. as we know standard consistency value for a cement its value is used for making the paste for determining setting time, soundness, compressive strength of cement
How do you control blaine of cement?
You can control the blaine of cement, which is simply the fineness of the cement mixture, by calculating it with an automatic air permeability test during production.
What is the range of values of standard consistency of cement?
40
What will satisfy the ASTM standard requirements for normal consistency of cement?
To satisfy the ASTM standard requirements for normal consistency of cement: The Amount of Water that brings the cement paste to standard condition should vary between 22% to 30% by weight of dry cement.
