To determine initial and final setting time, the amount of water needed to make standard paste is required. So the significance of consistency test comes into play as it helps to determine the amount of water used to make standard paste.
Besides, cement consistency affects workabilty of concrete(slump) and the workabilty of cement is affected by cement paste.
Also strength of cement classes(32.5/42.5/52.5) and other properties of cement are measured at specified consistancy rather than at specified water-cement ratio.
get e.b.
the amount of water content that brings the cement past to a standard condition of wetness is called "normal consistency".
It refers to the ability of cement to flow. a paste is said to have a normal consistency when the plunger of the Vicat's apparatus penetrate it by 10_+1 mm.
1. Measure the work-ability of cement. 2. Determining the quality test of cement.
it has more cement than the normal mix
A typical mixture is three of sand to one of cement. Make a small batch first and check the consistency of it. The wetness of the sand has a lot to do with the consistency. For block and brick work, a bit should squeeze out the side but still support the block or brick with about 3/8 inch above the previous row. Then this side excess is scraped off and pointed with a pointing tool.
Unfortunately not. You require a 0-4mm sharp sand which can be purchased through most builders merchants. The mix should be approximately 1:4 Cement / Sand ratio. Mix to an earthy consistency and compact well. The cement is the conductor of the heat. Good luck with the project.
Concrete is an aggregate (like sand, crushed rock or the like), water and (usually Portland) cement plus a little bit of a couple or three other other chemicals to adjust the consistency of the final product. Basically we just use sand, water and cement to mix up this familiar construction material. A link to the Wikipedia article is provided.
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.
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
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
does this cement satisfy ASTM standard requirements for normal consistency
1. Measure the work-ability of cement. 2. Determining the quality test of cement.
consistency of cement 31- 33 %
the degree of wetness exhibited by a freely mixed concrete whose value is considered at hand
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
It is normal for Ordinary Portland cement to have a consistency ranging from 25-35%. To prepare cement paste of standard consistency, 25-35% of water must be added to cement. For a more detailed explanation, let us assume that a standard consistency is 30%. To make this quantity, add 30% water to 400g of cement.
40
Yes because white cement quic over the normal cement and he give better finishins as corare to murm cement.
assuming kilos means kilograms. In that case, there is no definite answer. Kilograms are units of mass and ite dpends on the consistency (or density) of the cement mixture. A cubic meter of cement can have various densities.