Concrete Slump Test Procedure, Applications & Types of Slump

Procedure of Concrete Slump test: The mold for the concrete slump test is a frustum of a cone, 300 mm (12 in) of height. The base is 200 mm (8in) in diameter and it has a smaller opening at the top of 100 mm (4 in). The base is placed on a smooth surface and the container is filled with concrete in three layers, whose workability is to be

Identify 8 Common Signs of Foundation Problems | HD

Jun 15,  · To prevent the need for extensive house foundation repair, take a few minutes to learn to recognize the 8 signs that might mean that something is wrong with your foundation. After all, problems are very common and can prove costly. While foundation repair costs for slab and pier and beam foundations generally range from $4,000-$8,500 for an average-sized house, the price can be much

Concrete Driveways - All About Concrete Driveways

Concrete should then be sealed every 3 to 5 years thereafter to slow down the deterioration process. If you live in a snowy region and de-icers are regularly used in your area, standard gray concrete and stamped/colored concrete should then be sealed every 1 to 2 years to protect from salt and magnesium chloride.


V 3 Construction can help customize your commercial project. From the design phase to the final down spout, we can help create and streamline the exterior construction of your project.

Choosing the Best Anchor to Fasten to Concrete - Concrete

The concrete anchor diameter is matched to the hole size that needs to be drilled into the concrete to allow the anchor to protrude through the fixture. Below are anchor diameters and the corresponding fixture hole size: Anchor Dia. Fixture Hole Dia. 1/4". 5/16". 5/16". 3/8". 3/8".

Emissions from the Cement Industry - State of the Planet

May 09,  · Concrete is the second most consumed substance on Earth after water. On average, each year, three tons of concrete are consumed by every person on the planet. Concrete is used globally to build buildings, bridges, roads, runways, sidewalks, and dams. Cement is indispensable for construction activity, so it is tightly linked to the global economy.

PDF Concrete Slab Surface Defects: Causes, Prevention, Repair

3. Warm the subgrade before placing concrete on it during cold weather. 4. Avoid placing a slab directly on polyethylene film or other vapor barriers. Use a 100-mm (4-in.) layer of compactible, drainable fill (not sand). A "crusher run" material, usually graded from 38 mm to 50 mm (1-1/2 in. to 2 in.) down to rock dust, is suitable.

How to Install a Bathtub on a Cement Floor | Hunker

Oct 07,  · Ideally, your concrete subfloor is already level, but it's important to double-check it in both directions with a 6-foot level.If the bubble doesn't center, spread concrete floor leveling compound over the entire part of the floor that's under the tub and screed it level with a straight piece of wood or metal.

eTool : Construction - Struck-By | Occupational Safety and

The bulldozer began to slide down the side of the snow and ice covered excavation, tipped over on its side, and pinned the operator under the roll bars. The driver was not wearing a seatbelt. A contractor was operating a backhoe when an employee attempted to walk between the swinging superstructure of the backhoe and a concrete wall.

Splash Blocks at

The Flex-A-Spout downspout extension features a durable plastic construction and brown color to match your home. This flexible downspout extension can be used to redirect runoff and help prevent water damage. This downspout extension fits 2 in. x 3 in. and 3 in. x 4 in. downspouts as well as 3 in. and 4 in. round downspouts.

Concrete Construction Stock Photos and Images - 123RF

Concrete construction contractor installing a expansion joint in a sidewalk, curb and storm drainage gutter on a new urban road street project. Truck mixer is pouring concrete into concrete pump for casting. building construction worker pouring cement or concrete with pump tube.