問題一覧
1
Is the name given to mineral powders which when mixed with water form a plastic body that easily can be shaped and that hardens after some time to yield a strong, stone hard body
Cement
2
Primary Function of cement
to bind coarse aggregates and fine aggregates, to fill the voids in between CA and FA to form a compact mass
3
Refers to the product obtained by burning (calcining) to incipient fusion a properly proportioned mixture of argillaceous and calcareous materials and the burnt product which is called clinker is then mixed with Gypsum (CaSO⁴•H20).
Portland Cement
4
The materials which contain calcium or lime as their major constituent are known as.
Calcereous Materials
5
The various _________ used in the manufacture of cement are lime stone, marl, chalk, shells, etc.
Calcareous Materials
6
These materials provide the required proportion of lime to the cement
Calcareous Materials
7
Contain alumina as their major constituent.
argillaceous materials
8
Used in the manufacture of cement are shale.
argillaceous materials
9
These materials provide the required proportion of silica, alumina, oxide of iron, etc. to the cement.
argillaceous material
10
In what degrees in mixing in certain proportions and burning in kiln.
1500°C
11
Clinker is cooled and groun to fine powder with addition of about ________ of gypsum.
2-3%
問題一覧
1
Is the name given to mineral powders which when mixed with water form a plastic body that easily can be shaped and that hardens after some time to yield a strong, stone hard body
Cement
2
Primary Function of cement
to bind coarse aggregates and fine aggregates, to fill the voids in between CA and FA to form a compact mass
3
Refers to the product obtained by burning (calcining) to incipient fusion a properly proportioned mixture of argillaceous and calcareous materials and the burnt product which is called clinker is then mixed with Gypsum (CaSO⁴•H20).
Portland Cement
4
The materials which contain calcium or lime as their major constituent are known as.
Calcereous Materials
5
The various _________ used in the manufacture of cement are lime stone, marl, chalk, shells, etc.
Calcareous Materials
6
These materials provide the required proportion of lime to the cement
Calcareous Materials
7
Contain alumina as their major constituent.
argillaceous materials
8
Used in the manufacture of cement are shale.
argillaceous materials
9
These materials provide the required proportion of silica, alumina, oxide of iron, etc. to the cement.
argillaceous material
10
In what degrees in mixing in certain proportions and burning in kiln.
1500°C
11
Clinker is cooled and groun to fine powder with addition of about ________ of gypsum.
2-3%