That indicates higher hydration rate of the cement , thus faster to achieve the desired resistance.
Portland cement (often referred to as OPC, from Ordinary Portland Cement) fineness 300 - 500 m2/kg
ANSWER In simple terms, the "blaine" is a measure of the particle size or fineness of cement.
what will be hapened if soundness and fineness more or less percentage presence in cement.
The fineness of Portland cement is typically measured by its specific surface area, which is usually expressed in square meters per kilogram (m²/kg). A typical value for the fineness of Portland cement ranges from 300 to 500 m²/kg. This fineness affects the hydration rate and strength development of the cement when mixed with water. Higher fineness generally leads to improved early strength but may also increase the risk of efflorescence and shrinkage.
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.
Blaine fineness is a measure of the fineness of cement or other powdered materials, expressed in terms of the surface area in square centimeters per gram (cm²/g). It is typically determined using a specific air permeability test, which reflects how finely the material is ground. A common standard for Blaine fineness is that a cement with a Blaine value of around 300 m²/kg corresponds to a mesh size of about 90-100 microns. However, the exact mesh equivalent can vary depending on the material and the testing conditions.
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
53 indicate the compressive strength (53 MPa) on cement mortar (1:3 mix) cube.
Loss of water held in gel spores that causes the change in volume.It is a function of the fineness and gel.Cement paste shrinks more than cement mortar and cement mortar shrinks more than concrete.
Fineness Modulus is a measurement of the coarseness or fineness of a given aggregate.
i think the fineness is 583
When cement is mixed with water, it forms slurry which gradually becomes less plastic with the passage of time & finally a hard mass is obtained. In this process, at a certain stage when the cement paste is sufficiently rigid to withstand a definite amount of Pressure, it is said to have set & the time required to reach this stage is termed as "setting time".