The cement concrete, from which entrained air and excess water are removed after placing it in position, is called ________

The cement concrete, from which entrained air and excess water are rem

1.	The cement concrete, from which entrained air and excess water are removed after placing it in position, is called ________
A.	Vacuum concrete
B.	LWC
C.	Prestressed concrete
D.	Sawdust concrete
Answer» B. LWC