Assertion: calcium hydroxide | /r/AtLocation | the mortar
Facets:
Source sentences:
text: Many problems concerning the interaction of silica and Ca(OH) 2 are still to be solved, but the results of this research strengthen the idea that adhesion between lime-sand mortar and clay bricks is caused not only by carbonation of calcium hydroxide contained in the mortar, but even by some chemical reactions involving the brick constituents and calcium hydroxide itself.