Amandla okukhula kwemboni : Ngokuthuthuka okuqhubekayo kwemboni yokwakha umkhumbi embonini yezokwakha, ukuvikelwa kwemvelo, kanye nebhodi le-calcium silicate njengento entsha yokuvikela imvelo, ithole ukunakwa okwengeziwe. Amandla okukhula embonini makhulu, futhi ibhodi ye-calcium silicate kulindeleke ukuthi isetshenziswe kabanzi