Modern technology does not stand still and scientists are constantly making new discoveries in science and technology. This also applies to concrete mixes. A new type of impact-resistant concrete has been developed relatively recently, the main advantage of which is its low price. This has been achieved by using production waste derived from rice hulls, as well as limestone and quartz sand. These aggregates account for 40% of the total mass of the concrete mortar.
Characteristics and composition
The new mix can be used in the production of heat-insulating and structural heat-insulating materials and products. As a result, the density of the concrete in such products is reduced and at the same time its structural properties are increased.
When creating a mixture of rice hulls, you can use clay, water and, of course, cement, the main components are mixed in the following ratio: cement – 40%, grain wastes – 20% and clay – 12%. It is also possible to add some lime paste to the concrete. After obtaining a homogeneous mass of the substance, it is placed in forms and kept in normal conditions for a month.
The use of rice hulls or other cereal waste helps to increase the strength of concrete, increase its shelf life, and reduce the thermal conductivity coefficient. Also to advantage of such approach of manufacture of concrete – is the decision of ecological problems, since the grain waste is destroyed by incineration.
Given the fact that the new concrete has indicators of stability by 6-9 times higher than GOST samples, the sphere of its application becomes very large. First of all, such concrete is used as protective structures as well as load-bearing structures for strategically important buildings.
An interesting property of the new concrete is the increase in its strength together with the increase in the impact force that is applied to it. In other words, this effect can be called the “rubber effect”: the surface begins to shrink and spring slightly, without cracking the structure itself.
