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concreting, concrete pouring, concreting casting.
it has to be tacky!!!!!!!
Spacer's will make it easier for the "First Time Mason". It will keep the Joints at the standard 3/8 inch.
6'' thick sand filling, then 9'' thick plain cement concrete 1:4:8 [ ratio] then top layer of Plain cement concrete 1:1.5:3 mixed with concrete mixer. proper vibrator should be used. expansion joint should be after 2.5mts to 3mts alternatively of 12 mm wide and filled with the mixer of hot bitumen sand mixed. by: m.s.chaudhary [civil engineer]
Not just any sand. Mortar sand. Mortar sand is a larger grain sand that has been washed and screened to remove any rocks or pebbles.
concreting, concrete pouring, concreting casting.
it has to be tacky!!!!!!!
in between existing concrete and the new concrete you need to place an expansion joint in between the two.
Rockbottom period is 7 days once quality concreting is done and meticulous watering the concrete , otherwise normally 21 days is recokened as the period for curing the concrete( that is, setting the concrete) to take care of failure to adhere to correct processing of laying concrete and curing with water .
Central Pacific & Union Pacific.
As a private installer I charge $1.50 per/sqf ! in Canada !!
PCC in construction refers to Plain Cement Concrete, which is used as a preparatory base for laying RCC footing. Though PCC is also concrete, this is lean in nature, the ratio being 1:4:8. The compressive strength achieved with this mix is normally 7.5kN/sq.mm.
In general, about half an inch of mortar is required to lay each hollow concrete block. The total amount of mortar needed can be calculated by multiplying this value by the number of blocks to be laid.
The Vacuum Dewatered Flooring or VDF Flooring is a system for laying high quality concrete floors where the key is Dewatering of Concrete by Vacuum Process wherein surplus water from the concrete is removed immediately after placing and vibration, thereby reducing the water: cement ratio to the optimum level.
Laying down laminate flooring on concrete is usually a tedious process. Only a profesional would be able to carry out such a operation.
Spacer's will make it easier for the "First Time Mason". It will keep the Joints at the standard 3/8 inch.
6'' thick sand filling, then 9'' thick plain cement concrete 1:4:8 [ ratio] then top layer of Plain cement concrete 1:1.5:3 mixed with concrete mixer. proper vibrator should be used. expansion joint should be after 2.5mts to 3mts alternatively of 12 mm wide and filled with the mixer of hot bitumen sand mixed. by: m.s.chaudhary [civil engineer]