Concrete Mix Ratios – Cement, Sand, Aggregate and Water
When you increase thickness to 6 inches, one cubic yard of concrete covers an area of 52 square feet and 65 square feet with a thickness of 5 inches. When you want to have one cubic yard of concrete with strength of 4000 psi, you need to keep following ratios: Cement – 611 pounds; Sand – 1450 pounds; Stone – 1600 pounds; Water – 33 to ...
Average Cost of Concrete Slabs Per Square Foot - Civil Engineers …
Concrete is sold per cubic yard which is 27 square feet. To determine the amount of concrete needed multiply the square footage of the slab by the depth of the slab. Then divide that number by 27. Remember to add ten percent to the cubic yard figure to account for the loss that occurs during pouring and transport on the truck.
Crushed Concrete – Definition, Pricing and Why To Use
This torn down concrete is then cleaned and crushed by crushers, so that it can be used again. Many people believe that crushed concrete cost is low because it is a substandard item. crushed concrete. Contrary to this belief, crushed concrete has found its way to many buildings as well as the base material for roads, driveways and patios. It ...
Concrete Fence Posts – Features and Construction Process
What is Concrete Fence Post. Building a fence is necessary when you want to cage livestock or designate your yard. It is imperative for the fence to remain functional. Fence posts are needed for attaching the fence and can be made from many materials. Concrete fence posts are durable and provide a long lasting solution for fencing requirements ...
Concrete Pile,Steel Pile,Composite Pile,Timber Pile - Civil Engineers …
Timber pile, Steel Pile, Concrete Pile, Composite Pile Concrete Piles. Concrete piles are either precast or in-situ. Cement concrete is used in the construction of concrete piles. Precast concrete piles are prepared in factory or casting yard and cast-in-situ are prepared by making a hole and filling it with concrete. concrete piles Steel Piles
Exposed Aggregate Concrete - Advantages and Disadvantages
exposed aggregate concrete DISADVANTAGES OF EXPOSED AGGREGATE CONCRETE. While an exposed aggregate concrete adds color to front yard or driveway and looks exclusive and ornamental, compared to concrete slab, you need to consider its limitations before installing one. The disadvantages of exposed aggregate concrete is listed below.
Types of Prestressing Used in Concrete - Civil Engineers Forum
In prestressed concrete, high tensile steel is used which is elongated a great deal before its strength is fully utilized. The surrounding concrete will have to crack very seriously before the full strength of the steel is developed if the high tensile steel simply buried in the concrete as in ordinary reinforced concrete.
Advantages of Air-Entrained Concrete - Civil Engineers Forum
What is Air-entrained Concrete, Advantages and disadvantages of Air-entrained Concrete: Air-entrained concrete is defined as the air intentionally incorporated by means of a suitable agent. Entrained air produces discrete cavities in the cement …
Difference Between One Way Slab and Two Way Slab - Civil …
2016年12月14日 · one way slab Two Way Slab. Two way slabs are the slabs that are supported on four sides and the ratio of longer span (l) to shorter span (b) is less than 2.
Cellular Concrete | Foamed Concrete and Gas Concrete
Cellular concrete may or may not contain aggregate, the latter generally being the case with non-structural concrete required for heat insulation when a density of 12 to 20 lb/ft3 can be obtained. More usual mixes have densities between 30 and 70 lb/ft3 when mixture of …