Studying the hardening and mechanical performances of rice husk and hemp-based building materials cured under natural and accelerated carbonation

Carbonation of cement paste: Understanding, challenges, and opportunities

“…A cementitious matrix cured using short term accelerated carbonation creates a microstructure with more strength-contributing solids than conventional curing [110,[116][117][118][119][120]. Unlike passive carbonation processes described previously, where all three polymorphs of calcium carbonate have been reported to form, accelerated carbonation curing seems to result mostly in formation of the stable polymorph, calcite [103,109].…”

The effect of long term weathering on hemp and rapeseed concrete

“…Several durability mechanisms have been studied thus far; from biological aging [8], [9], fire exposure [10], wetting and drying with variable humidity cycles [9], [11], carbonation [12], [13], salt exposure and freeze-thaw [14].…”

Experimental study and multi-physics modelling of concrete under supercritical carbonation

“…Under supercritical conditions, i.e., when the pressure and temperature exceed 7.38 MPa and 304.12 K, respectively [13] , cement-based materials can be carbonated far quickly, so that researchers can assess the impact of carbonation on the materials within a realistic time frame. Moreover, the technique has been widely used in, e.g., CO2 capture and storage to absorb the carbon dioxide from the atmosphere [14,15] , material surface curing, improving compactness of materials [16][17][18] , enhancing mechanical property and durability of fibre reinforced cementitious composites [19,20] , recycling concrete [21,22] , and solidification and stabilization of heavy metals and hazardous materials [23][24][25][26] in concrete.…”