MAKING CONCRETE A SUSTAINABLE BUILDING MATERIAL?
Roanoke, VA’s Concrete is a friend of the environment in all stages of its life span, from raw material production to demolition, making it a natural choice for sustainable home construction. Here are some of the reasons why, according to the Portland Cement Association and the Environmental Council of Concrete Organizations:
Resource efficiency. The predominant raw material for the cement in concrete is limestone, the most abundant mineral on earth. Concrete can also be made with fly ash, slag cement, and silica fume, all waste byproducts from power plants, steel mills, and other manufacturing facilities.
Durability. Concrete builds durable, long-lasting structures that will not rust, rot, or burn. Life spans for concrete building products can be double or triple those of other common building materials.
Thermal mass. Homes built with concrete walls, foundations, and floors are highly energy efficient because they take advantage of concretes inherent thermal massor ability to absorb and retain heat. This means homeowners can significantly cut their heating and cooling bills and install smaller-capacity HVAC equipment.
Reactivity. Concrete minimizes the effects that produce urban heat islands. Light-colored concrete pavements and roofs absorb less heat and reflect more solar radiation than dark-colored materials, such as asphalt, reducing air conditioning demands in the summer.
Ability to retain storm water. Paved surfaces tend to be impervious and can block natural water infiltration into the soil. This creates an imbalance in the natural ecosystem and leads to problems such as erosion, flash floods, water table depletion, and pollution. Pervious concrete is a special type of structural concrete with a sponge-like network of voids that water passes through readily. When used for driveways, sidewalks, parking lots, and other pavements, pervious concrete can help to retain stormwater runoff and replenish local water supplies.
Minimal waste. Concrete can be produced in the quantities needed for each project, reducing waste. After a concrete structure has served its original purpose, the concrete can be crushed and recycled into aggregate for use in new concrete pavements or as backfill or road base.
Hempcrete.
Construction block made from hempcrete
Hempcrete or Hemplime is bio-composite material, a mixture of hemp hurds (shives) and lime (possibly including natural hydraulic lime, sand, pozzolans) used as a material for construction and insulation. It is marketed under names like Hempcrete, Canobiote, Canosmose, and Isochanvre. Hempcrete is easier to work with than traditional lime mixes and acts as an insulator and moisture regulator. It lacks the brittleness of concrete and consequently does not need expansion joints. The result is a lightweight insulating material ideal for most climates as it combines insulation and thermal mass.
Hempcrete has been used in France since the early 1990’s to construct non-weight bearing insulating infill walls, as hempcrete does not have the requisite strength for constructing foundation and is instead supported by the frame. France continues to be an avid user of hempcrete; it is growing in popularity annually.
Like other plant products, hemp absorbs CO2 from the atmosphere as it grows, retaining the carbon and releasing the oxygen. Theoretically 165 kg of carbon can be absorbed and locked up by 1 m3 of hempcrete wall during manufacture.
The typical compressive strength is around 1 MPa, around 1/20 that of residential grade concrete. It is a low density material and resistant to cracking under movement, thus making it highly suitable for use in earthquake, (888) 237-2746 Roanoke, VA
Nine Largest Cement Providers In United States
1 Oldcastle Inc. | Roanoke. 2 Cemex Inc. | Houston. 3 Lafarge North America | Herndon, Va. 4 HeidelbergCement | Allentown, Pa. 5 Holcim Inc. 6 Vulcan Materials Co. 7 Colas S.A. | Roseland, N.J. 8 Martin Marietta Materials | Raleigh, N.C. 9. National Site Materials \ Roanoke, VA. (888) 237-2746 Roanoke, VA
Roanoke, VA Local Cement Providers
| National Site Materials of Roanoke, VA www.Roanokesitematerials.com |
2011 Salem Ave SW |
Roanoke, VA | [email protected] | 24016 |
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Cities near and around Roanoke, VA we service, (888) 237-2746 Roanoke, VA
Zip Codes near Roanoke, VA we offer Concrete Blocks and Rebar
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Description
Roanoke is a city in the Blue Ridge Mountains of southwest Virginia. It’s known for the Roanoke Star, also known as the Mill Mountain Star, a neon landmark overlooking the city from the summit of Mill Mountain. The surrounding park area is home to trails, picnic areas and the Mill Mountain Zoo. Downtown, the Taubman Museum of Art highlights work by American artists like Thomas Eakins and John Singer Sargent.
We deliver materials nationwide.
Choose from gravel, fill dirt, topsoil, concrete building blocks and mix material, rebar, precast concrete, asphalt, sand, clay, river rock, limestone, crushed recycled concrete, riprap and manure.
| National Site Materials of Roanoke, VA www.Roanokesitematerials.com |
2011 Salem Ave SW |
Roanoke, VA | [email protected] | 24016 |