Articles

Antiwashout underwater concrete is an underwater concrete that has improved resistance to segregation as a result of adding an antiwashout admixture. Antiwashout underwater concrete (or underwater antiwash concrete) shall have the required strength, durability, compactness, and ability to protect steel materials, and the scatter in quality shall be small. Also, the concrete shall have a workability suitable for the placing operation and shall not cause water pollution. As in the case of ordinary concrete, antiwashout underwater concrete should have the desired strength and durability, as ...

Concrete Admixture is one ingredient of concrete that is added to the mix before or during mixing to modify concrete properties. Concrete admixture are used to modify the properties of fresh and hardened concrete in order to achieve the desired objectives or purpose of the concrete mixture. It is also used for economic purpose when admixture allows reduction of concrete ingredients proportions or permits saving in construction practices. Concrete admixtures have their history for hundred of years. The latest generation is polycarboxylates or polymer based admixture. Polycarboxylates or po...

If there’s one thing prominent about the world today, it is concrete. Regardless where you are, it would be next to impossible for you not to encounter any form of concrete. On the off-chance that you are not familiar with it, concrete is actually a construction material made from Portland cement mixed with other materials such as fly ash and slag cement, crushed rocks, water, and chemical admixtures. Because of its strength, concrete is commonly used to create roads, houses, and buildings. Unfortunately, strong as concrete might seem, it is still prone to wear and tear as well as damage....

Like your house, a wooden storage shed must sit on a foundation. Of the two most common types of foundations, that being the concrete slab and the wooden skid foundation, the slab is somewhat more elaborate. The concrete slab foundation for shed is also known as a slab-on-grade foundation. The slab foundation will be discussed in this article. The concrete slab, when used as the floor of a storage shed, will be 3 to 4 inches thick with a perimeter or footing of 8 to 12 inches thick. The depth of slab, the type of metal reinforcement, the amount and type of gravel used for the sub-ba...

Monitoring harbour walls, water tank corrosion, damage to sea structure, and other structures that are submerged in water has now become a little easier. Many water authorities harbour commissions and local governments are now turning to using miniature underwater robots. Small in size and highly maneuverable these robotic ROV’s use powerful lights, and have cameras on board. This means divers are not needed as often, which puts fewer lives at risk and reduces the cost involved to maintain water tanks, towers and other inaccessible underwater structures. The benefits of using underwater ...

CONCRETE OVERLAYS - 1/3 THE COST OF TEAR OUT AND REPLACEMENT Do you have worn, discolored concrete in needed of a extreme makeover? by covering concrete with an overlay, you can fix concrete, restore it to a new condition or completly transform its appearance . Adding pattern, texture and color to exterior concrete flatwork, including patios, pool decks, driveways and sidewalks. Using special techniques and tools such as pattern stamps and stencils, skilled installers can precisely replicate the look of natural stone, brick, tile or slate. Resurfacing interior floors, including those...

CCMA stands for Carolinas Concrete Masonry Association. It is a non-profit trade organization. This association focuses on promoting the premium utilization of technical information, masonry materials, the benefits as well as economics of the using masonry, codes and designs for the commercial and residential construction markets. Carolinas Concrete Masonry Association offers not only education but also promotional assistance as well as advocacy to all its members. Concrete masonry product has advanced characteristics. It does not have any negative impacts on the environment. Furthermore, it ...

It is well known by now that concrete is a versatile and well-accepted material that homeowners and designers are requesting and weaving into their homes, offices, retail outlets, restaurants, malls, etc., in the most amazing ways. But leading the charge in the concrete craze is stained concrete flooring. If applied correctly to a clean surface, acid based concrete stain colors will always be permanent. Stained concrete combines the best of the best: beauty and functionality Concrete staining imparts a royal look that can't be simply achieved by any other coloring medium. Stained concrete fl...

The pathway that leads visitors to your home from the main gates to the doors should be attractive as they give the impression about the residents of the house. You may have spent months designing the pathway by selecting the best concrete and decorative concrete coating. You had to wait for months for the plants on the sidewalk to bloom so that the pathway or the sidewalks would become one of the most beautiful looking in your neighborhood. However, normal decorative coating just offers colors that may fade out with time and weather. This spoils the look of the pathways and the sidewalks maki...

How to build an outdoor pizza oven Having an outdoor pizza oven is becoming a trend in which all types of people are taking part. These ovens create a great taste and are relatively easy to make. Using burning wood is one of the main reasons people do this as the taste is so different, yet much nicer in my opinion, than a regular oven. Things You Will Need: - shovel - concrete blocks - bricks - mortar - concrete - 2x4 woods 1st Step You need to decide how big the pizza oven is going to be and where it is going to be placed. Dig a pit 5 inches deep making it as wide as the ove...