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What is the difference between a normal weight concrete and a lightweight concrete by volume?
cement is binding material while concreat is an homogeneous mixtur of cement sand and soil water etc.
What is the function of gypsum in cement?
Gypsum is a mineral that contains up to 88% CaSO4.2H2O. this compound Calcium Sulphate dihydrate is responsible for retarding the setting time of cement. the action of Calcium Sulphate dihydrate is such that it inhibits the speed at which Calcite (C3S) molecules bind with water to set thus creating a cement that is workable.
Can laxatives be taken while fasting for a blood test?
Regular medications should be okay while fasting. Check with your doctor.
How does storing water in reservoirs help to purify water?
Water is stored in a reservoir until needed. While stored, particles of dirt settle at the bottom. This helps to purify the water.
Why is the boiling point lower than melting point?
It is the opposite. The boiling point is greater than the melting point. for example for fresh water, the boiling point is 100 centigrade while the melting point (for ice) is zero.
What are KNITTING point protectors?
They are rubbery things that fit over the points of the knitting needles while storing the work in progress.
What is the melting point of asphalt cement?
Asphalt cement is an amorphous polymer, which makes defining the melting point difficult. It's more common to refer to the glassy-transition temperature and the softening temperature. The glassy-transition temperature of asphalt cement is between -35 °C to -10 °C and the softening point ranges from 30 °C to 150 °C. While these temperatures vary for each asphalt, exact values an be determined with a DSC test and the ring and ball test respectfully.
What is meant by fiber cement siding?
Fiber cement siding is a building material made of a combination of sand, cement, and cellulose fibers. While fiber cement siding is very heavy and difficult to install, it is known for being durable and long lasting.
What is space gel?
Gel is the hydrated cement while space is volume occupied by hydrated cement+capillary pores. Hence gel/space ratio is the fraction of volume occupied by hydrated cement in the total space occupied by hydrated cement and capillary pores
What is gel space ratio?
Gel is the hydrated cement while space is volume occupied by hydrated cement+capillary pores. Hence gel/space ratio is the fraction of volume occupied by hydrated cement in the total space occupied by hydrated cement and capillary pores
Describe the challenges and opportunities you see in the global cement industry today that you feel should be top of mind for the leadership team members at a top 20 cement company?
The challenges in the global cement industry today include carbon dioxide emission and cement sustainability, while the opportunities include green cement production.
What is the importance of setting time of cement?
because when we know the setting time of cement we easily identified that where can we use the cement according to there setting time.
How do Dromedaries and Bactrians conserve energy while moving?
They conserve energy by storing fat in their humps.
What is the soundness of cement?
soundness is nothing but volumetric change of the cement .Presents of chemicals such as CaO,MgO will react with the water present in the cement paste and it will increase the volume of cement paste while hardening.It may causes cracks in the building to avoid that it is necessary to find the soundness of cement before using that.It may vary to each type of cement even for each batch.Soundness should not exceed 10mm for OPC.
What is the difference between a normal weight concrete and a lightweight concrete by volume?
cement is binding material while concreat is an homogeneous mixtur of cement sand and soil water etc.
Could storing dead batteries in the freezer cause the batteries to work for a short while?
I dont know the answer
Why do you wet cement the next day?
Keeping it damp while it cures helps to prevent cracking.
