Precast Concrete Copings and Cast Stone Copings Saint John NB

What is the difference between precast concrete copings and cast stone copings in the market in Saint John? Although the terms are sometimes used interchangeably, the materials are different.

Classic Construction Ltd
(506) 634-0919
722 Grandview Avenue
Saint John, NB
 
Classic Construction Ltd
(506) 634-0919
722 Grandview Avenue
Saint John, NB
 
Debly Resources Inc
(506) 696-2936
170 Ashburn Rd
Saint John, NB
 
A-1 Paving Inc
(506) 457-9103
1769 Lincoln Road
Fredericton, NB
 
K & D Pratt
(506) 658-1148
15 Consumers Dr
Saint John, NB
 
Maximum Paving Inc
(506) 657-8472
2 Reading Crescent
Saint John, NB
 
PACIFIC PRO DRIVEWAY SEALERS
(506) 784-1902
beech st
McAdam, NB
 
Maximum Paving Inc
(506) 657-8472
2 Reading Crescent
Saint John, NB
 
Power Commission of the City of Saint John Saint Joh
(506) 658-0868
Saint John, NB
 
Corscadden's Small Engine
(506) 696-1956
2412 Loch Lomond Rd
Saint John, NB
 

Precast Concrete Copings and Cast Stone Copings

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: August 1, 1999

What is the difference between precast concrete copings and cast stone copings? Although the terms are sometimes used interchangeably, the materials are different. The primary difference relates to the consistency of the concrete when these elements are made. In cast stone, the concrete mix is very dry and contains no coarse aggregate. This mix is packed into the forms and pressed. The finished product looks very much like natural limestone.Cast stone can be colored and textured to provide a variety of appearances. Cast stone is difficult to air-entrain because some air will be squeezed out when cast stone is pressed into forms. Air-entraining improves the durability of concrete products exposed to cyclic freezing and thawing when wet. Cast stone manufacturers say their products are durable because of the low slump and the consequent low water-to-cement ratio. This gives cast stone a high compressive strength and durability in freeze-thaw environments.Precast concrete is formed with a low-slump fluid concrete that is poured into forms. Precast concrete also can be colored and textured to provide a variety of different appearances. Precast concrete products can be easily air-entrained, improving their durability.

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