Water seepage and shrinkage cracking are widely prevalent issues in concrete, leading to wide array of durability problems in buildings. Biochar Innovations Pte. Ltd. (BIPL) presents a novel solution to enhance building durability and indoor air quality by applying engineered biochar as cementitious admixture and air-filtration material, respectively.
Our patented biochar and preparation techniques improves durability of cementitious building materials by 30 - 60%. Application of BIPL’s biochar in cement-based materials promotes new means of waste recycling and offer best-in-class service.
Biochar is a solid residue formed by pyrolysis or gasification of waste biomass including agricultural waste, forest waste, food waste etc.
The biomass category, preparation technology and processing influence the physio-chemical properties of the produced biochar, and therefore affect its performance as an admixture in cement, and as a material for air-filtration.
It is critical to obtain biochar of certain physical properties and chemical composition for successful application as admixture in concrete and air-filter, respectively. BIPL’s patented technology can tailor the processing conditions depending on the type of biomass to produce biochar with a range of suitable properties for application in cement-based composites and air-filter.
BIPL owns and controls the production conditions, mixing process and implementation steps for preparation of biochar and biochar-concrete. This starts with pre-processing of biomass, tuning the preparation conditions depending on feedstock category and post-processing of the produced biochar.
It is critical to obtain biochar of certain physical properties, for example, particle size, pore distribution, total porosity etc. and chemical composition for successful application as admixture in concrete and air-filter material, respectively. BIPL’s patented technology can tailor the processing conditions depending on the type of feedstock to produce biochar with a range of suitable properties for application in cement-based composites and as air-filter.
BIPL’s biochar is engineered to improve compactness of cementitious matrix comprising of cement, fine and coarse aggregates. This leads to ‘filling’ of voids in cementitious matrix, resulting in higher hydration and improvement in strength right from the early age.
Depending on biomass, biochar manufactured by BIPL can improve strength of concrete by 10 – 20% compared to normal concrete.
Our research and development over the past years have found that biochar can reduce water absorption and penetration in concrete by 30-60% depending on the grade of concrete. This implies substantial improvement in durability of structural and non-structural building components.
BIPL’s biochar technology also addresses the problem of early shrinkage cracking in cementitious building materials. Internal curing action of biochar, prepared by BIPL, leads to better hydration and moisture redistribution, resulting in lower likelihood of shrinkage cracking.
Innovations in material design and processing by BIPL can help in achieving higher carbon sequestration in cementitious building materials through carbonation curing. Using this technique, CO2 emissions from industries can be captured and sequestered in concrete through mineralization (calcium carbonate crystals). This technique delivers low-carbon cement, improves strength and durability of cementitious materials.
Special “biochar fins” are made using our patent-pending method, which can effectively capture tiny particulate matters in air ducts or indoor space of buildings. These tiny particles attach themselves to the surfaces of the biochar fins through a process known as impingement. The removal rate of these tiny particles is between 8% and 50%, depending on the level of pollutants in the air!