| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide calcium aluminosilicate having a high vitrification percentage which can give high early strength development properties to mortar, concrete, etc., stably irrespective of temperature, and to provide a fast curing admixture which makes the decline of the early strength development properties suppressed enough and can easily secure usable time and long time strength development properties. <P>SOLUTION: The calcium aluminosilicate of at least 50% vitrification percentage includes 6-14 pts.mass of SiO<SB POS="POST">2</SB>and 0.6-1.8 pts.mass of a divalent metal oxide excluding CaO to 100 pts.mass of the total content of CaO and Al<SB POS="POST">2</SB>O<SB POS="POST">3</SB>as chemical components. The fast curing admixture contains the calcium aluminosilicate, gypsum and the like, and a coagulation promoting component as effective components. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
