The planet is rapidly being polluted and every industry takes part in its pollution. Namely, the cement production is accountable for around 7% of the world carbon dioxide emissions on yearly basis.
The production of cement requires plenty of sand and due to the massive cement demand there is a global shortage of sand. This natural resource in the world takes the second place after water, and the great demand of it can significantly disturb the balance in Nature.
The specific type of sand needed for the production of concrete is often obtained from riverbeds which hampers the balance of the ecosystems and threatens the existence of various plants, fish, and animals.
Cement is a high-carbon-intensity material that contributes to the rise of carbon emissions thus polluting our planet.
Due to the ongoing awareness of the need to protect our planet almost every industry is trying to find more sustainable alternatives in construction.
The industry is considering other alternatives in the production of cement so that the environment is saved and as well as the economy. It is trying to find some other material that could successfully replace cement. Although this seems impossible the engineers are focusing on bio aggregates thus creating green concretes.
A plant like hemp could completely replace cement in construction projects, and the solution of hemp-based concretes is one of the most environmentally sustainable alternatives to conventional concrete.
Hemp can dramatically reduce or even offset greenhouse gas pollution. and additionally the hemp fields will absorb carbon while growing. Even after harvesting this plant continues to absorb greenhouse gases because it is a mixture of lime or clay.
The cement producers state they have tried really hard to find markets for greener alternatives, but there is great interest from customers that are concerned about their impact on the Earth. A 64-year-old Mac Radford is an entrepreneur that offers this green alternative, and his company, JustBioFiber Structural Solutions, manufactures hemp-concrete.
JustBioFiber is one of the leading producers of hemp-concrete and recently the demand for this eco-material has risen and now the company experiences hard time to keep up with the ongoing orders.
However, Radford has expanded his company, and after its completion his company would produce sufficient amount of hemp brick thus building around 2,000 homes every year. At the moment this is a profitable company with a tendency of expansion after making a new $28 million investment.
The constructions with hemp are highly beneficial for the environment as according to JustBioFiber they can capture 130 kilograms (287 pounds) of carbon dioxide for each cubic meter. These hemp structures will sequester more greenhouse gases than they emit in production.
The use of hemp concrete dates back since ancient Rome when it was mixed into the mortar to build bridges. In modern times, it was first introduced in France three decades ago, when it was used for renovating old houses as it blended nicely with stone and lime.
Hempcrete is making way in modern building as not only that is good for the environment but as well as it is more resistant to fire, regulates temperature better and offers better ventilation than conventional concrete.
It has been introduced in large projects like in the construction of a seven-story municipal building according to the statement of Quentin Pichon, the founder of CAN-Ingenieurs Architectes, a company specializing in hempcrete.
If this eco-concrete is used fully in the construction industry, then it will for sure solve many social, environmental and economic issues.