Using lightweight concrete is a very efficient way to build your house. It also helps conserve energy and is a very good choice if you want to reduce your carbon footprint. There are many benefits of using this type of material, and we’ll look at some of them in this article.
Oil palm shell (OPS)
Oil palm shell concrete (OPSC) is an alternative aggregate for concrete production. Several studies have reported the potential of OPS as an alternative material for coarse aggregate in lightweight concrete. The benefits of using OPSC include reduced construction costs, increased farmer income and less environmental pollution.
Various techniques have been used to improve the performance of OPSC. Among them, heat treatment has been applied to increase its workability. A superplasticizer has also been applied to improve its properties. Increasing the proportion of fine OPS has also been found to enhance its workability.
Increasing the proportion of OPS in the concrete can decrease its density by a considerable amount. Furthermore, increasing the content of sand relative to cement can increase its compactness.
High water absorption rates by OPS are attributed to its connectivity of pores. In addition, its round shape is responsible for improving its workability.
The density of OPSC varies between 1735 and 2044 kg/m3. When the OPS is incorporated into the concrete mixture, its specific heat increases.
A previous study on the compressive strength of OPSC suggested that it has a 28-day compressive strength that exceeds 17 N/mm2. Thus, it is an ideal material for structural lightweight aggregate concrete.
Although OPS has been proven an effective alternative to conventional aggregate in concrete production, it is still not widely adopted. Future studies on the durability, workability and mechanical properties of OPSC are recommended.
Agro-wastes can be used in construction to produce high-performance, lightweight concrete. However, it is important to understand agro-wastes properties to determine their usefulness as a green building material. The use of agricultural wastes in construction offers several advantages. For example, it reduces pressure on the ecological environment, decreases the demand for energy during construction, and improves durability.
Agricultural waste materials include palm oil fuel ash, rice husk, oyster shell, and wild giant reed. Some of these materials can be incorporated into the concrete matrix as aggregates or adobe. They can also be used to reinforce cementitious materials.
Several studies have shown that incorporating agro-wastes into cementitious materials has proven to improve the performance of concrete. It is possible to replace as much as 10-30% of the cement in high-strength concrete with agro-wastes.
Research into mixed agricultural wastes in concrete is relatively understudied. Future studies should focus on life cycle assessment, appropriate schemes for various agricultural residues with cement, and agro-cement modification with a superplasticizer. In addition, more studies should be conducted on cost analyses of ago-waste.
The benefits of using lightweight concrete for agricultural waste are numerous. It can be used as a fibre reinforcement, as an insulating material, or as a coating. Agricultural wastes are cheap, and their use in construction can provide a sustainable alternative to conventional concrete. Therefore, it is a worthwhile endeavour to explore their potential in the future.
Energy conservation considerations
The consumption of concrete in the construction industry has become extremely high because of its excellent durability and versatility. However, the use of concrete has also posed serious environmental hazards. Concrete significantly contributes to the environment by releasing carbon dioxide into the air. Thus, to reduce this problem, the search for sustainable materials is on the rise.
Lightweight aggregate concrete is a type of concrete that has a lower consumption of energy. This material has been developed to enhance the performance of buildings. Among its advantages, lightweight aggregate concrete has thermal insulation properties that can increase building efficiency. It is easier to construct compared to normal-weight concrete. In addition, it can be used to fill the floors of a building.
Many factors are involved in determining the amount of energy a home uses. Several of these include the age and size of the building, the insulation it provides, and the products used in the home. Another factor is the source of electricity. Several options are available to save energy, such as installing solar panels or reducing the amount of lighting and heating used in the building.
There are also some eco-friendly methods that we can check on the website to produce lightweight aggregate concrete. For instance, product manufacturers can use waste materials and pozzolanic materials instead of traditional aggregate. These are effective ways to save energy, reduce pollution, and contribute to environmental sustainability. Increasing demand for sustainable materials has led to the development of alternative construction materials.
Whether or not green concrete can replace conventional building methods is yet to be determined. Various developing countries have started using this product as a cost-effective, durable, and environmentally-friendly replacement for concrete. Other alternatives include recycled concrete, abode brick, and volcanic powder.