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What else can I help you with?
When mixing to make concrete what do you add to the mix last sand water or cement mix?
The water should be added last. All the aggregate materials and the cement should be thoroughly mixed before the water is added.
How does cement make concrete building?
cement is made with water cement mixture and sand after all of this is added
Why is water added to concrete while mixing it?
Concrete is made from cement and added gravel. Cement starts out as a powdered rock, which will remain a powder unless water is added to it. Water turns it unto a paste which will gradually harden into a solid material. The water undergoes a chemical reaction with the cement powder.
What is bulkage of cement?
when water is added to the cement,cement volume decreases due to removal of air from cement particles. this reduction in cement volume is the bulkage
What is the effect on setting time of cement if water added is less or more than 85 percent of normal constituency of cement?
how the water mixed with cement affects the time of its setting
Is adding water to cement irreversible or revirsible?
If you have added too much water to your mix just add more sand and cement ;but do this right away.
Why does dry cement outweigh wet cement?
Dry cement weighs more than wet cement because when water is added to cement, it creates a paste that fills the voids between the cement particles, leading to a lower overall density. The added water increases the volume but does not significantly increase the mass, as water is less dense compared to the solid particles of dry cement. Therefore, while wet cement may appear bulkier, the solid content in dry cement results in a greater weight.
Why gypsum added to cement?
3% of gypsum is added to cement to "prevent the rapid setting of cement"
What hydroxide is in cement?
Calcium hydroxide is one of the key compounds found in cement. It forms during the hydration process of cement when water is added to the cement mixture, leading to the setting and hardening of the material.
How do you soften cement?
To soften cement, you can use a chemical softener or plasticizer, which is typically added to the mix before it hardens. These additives help reduce the viscosity of the cement slurry, making it easier to work with. Additionally, adding water can also help to achieve a softer consistency, but care should be taken not to exceed the recommended water-to-cement ratio, as it can weaken the final product. Once the cement has hardened, it cannot be softened.
Why 2 of gypsum is added to cement?
Gypsum is added to cement to decrease the setting time.
Why is gypsum added to Portland cement?
Gypsum is added to portland cement to retard C3A hydration
