Production of Biochar and Its Potential Application in Cementitious Composites

Abstract

In cement composites, usually, reinforcement is provided to restrict the crack development and their further propagation under service conditions. Typically, reinforcements utilized in cementitious composites range from nanometer scale to millimeter scale by using nano-, micro-, and millimeter-sized fibers and particles. These reinforcements provide the crack arresting mechanisms at the nano/microscale and restrict the growth of the cracks under service loads, but usually, the synthesis of nano/microfibers, and afterward their dispersion in the cementitious materials, pose difficulty, thus limiting their vast application in the construction industry. Carbonaceous inerts are green materials since they are capable of capturing and storing carbon, thus limiting the emission of CO2 to the atmosphere. In the present study, a comprehensive review of the synthesis of low cost and environmentally friendly nano/micro carbonaceous inerts from pyrolysis of different agricultural/industrial wastes, and afterward, their application in the cementitious materials for producing high performance cementitious composites is presented, which have the potential to be used as nano/micro reinforcement in the cementitious matrix.

Comparative Study of Biochar and Charcoal and Their Application in the Construction Industry

“…Zhao et al, 2014). It has potential as a material for absorbing CO2 in cementbased applications, making it a low-cost and environmentally friendly option for the manufacture of highperformance cementitious composites (Akinyemi & Adesina, 2020;Khitab et al, 2021). In addition, adding biochar, which is generated from wood waste to concrete has been suggested to make buildings stronger and more water-resistant (Gupta & Kua, 2019).…”

The Interaction Effect of the Design Parameters on the Water Absorption of the Hemp-Reinforced Biocarbon-Filled Bio-Epoxy Composites

“…Similarly, biocarbon in polymer composite materials [ 20 , 21 ] may add cost-effectiveness and environment friendliness to the materials. Thus, biocarbon can be utilized to tailor-make newer, lighter, and sustainable composite materials [ 22 , 23 ]. Biocarbon is the product obtained by removing the volatiles from the biomass during its thermal degradation process.…”

Improvement of Early-Age Mechanical Properties of Cement Mortar by Adding Biochar of the Santa Maria Feverfew Plant

“…Pyrolysis is an energy-intensive method that involves the thermochemical breakdown of raw biomass in an inert atmosphere at high temperatures and pressures. This procedure yields different valuable products, like biochar, liquid bio-oil and fuel gases [1]. Biochar is a low-density dark-color carbon deposit.…”