·500· 北京科技大学学报 1996年No.6 参考文献 1 Chan C F,Sakiyama M,Mitsuda T.Kinetics of the Cao-Quartz-H,O Reaction at 120 C to 180 C in Suspension.Cem Con Res,1978(8):1 ~6 2 Taylor H F W.The Transformation of Tobermorite into Xonotlite.Mineral Mag,1959,32:110~116 3宋素兰，韩锦州，郑权.动态法合成超轻微孔硅酸钙.北京建材，1988(4)：8~15 Quality Effect of Xonotlite-type Calcium Silicate Thermal Insulation Materials by C,S Ni Wen Cao Zhengyuan Shu Xianlin College of Resources Enginering,USTB.Beijing 100083,PRC ABSTRACT The quality effect of xonotlite-type calcium silicate thermal insulation mate- rials by adding small amount of dicalcium silicate was studied.The basic raw materials were natural powder quartz and nature lime.The experimental result shows that the drying shringage of the thermal insulation materials decreases rapidly as the adding amount of C,S increases.When the adding amount of C,S increases from 0 to 5%,the drying shrinkage of the samples decrease from 2.19%to 0.92%,the products become up-to-standard from its originally below the standard.The reason for the decrease of the drying shrinkage is that the adding of C,S promoted the formation of the secondary grains. KEY WORDS dicalcium silicate,xonotlite,thermal insulation materials. 50 0 . 北 京 科 技 大 学 学 报 1 9 9 6年 N o . 6 参 考 文 献 1 C h an C F , s ak i y a m a M , M i t s u d a T · 幻n e ti e s o f ht e C a o 一 Q u artZ 一 H Z o eR ac ti o n a t l 2 0 ℃ t o l 8 0 ℃ in S u s P e n s i o n . C e m C o n R e s , 1 9 7 8 ( 8 ) : l 一 6 2 T a y l o r H F W . hT e T anr s fo mr a t i o n o f T o b e mr o ir t e in ot X o n o t li t e . M in e ar l M a g , 19 5 9 , 3 2 : 1 1 0 一 1 1 6 3 宋素兰 , 韩锦 州 , 郑 权 . 动态法合成超轻微孔硅 酸钙 . 北京建材 , 19 8 8 (4) : 8 一 巧 Q u a li ty E fe e t o f X o n o t l i t e 一 ty P e C a l e i u m S i l i c at e T h e rm a l I n s u l a t i o n M at e r i a l s b y C Z s iN 砰诊n aC o hZ e n 幻月沼a n hS u iX a n li n C o ll e g e o f R e s o ur e e s E n g i n e r in g , U S T B , B e ij i n g 10 0 0 8 3 , P R C A B S T R A C T T h e q u a lity e fe e t o f x o n o t li t e 一 ty P e e a l e i u m s ili e a t e ht e rm a l i n s u l a t i o n m a t e - ir a l s b y a d d i n g s m a ll a m o u n t o f d i e a l e i u m s ili e a t e w a s s tu d i e d . T h e b a s i e r a w m at e ir a l s w e r e n a tu r a l P o w d e r q u art z an d n a tu r e lim e . T h e e x P e r im e n at l r e s u l t s h o w s t h a t t h e d ry i n g s h r i n g a g e o f th e t h e rm a l i n s u l a t i o n m at e r i a l s d e o r e a s e s r ap id ly a s t h e a d d i n g am o u n t o f C Z 5 i n c r e a s e s · W h e n th e a d d i n g a m o u n t o f C Z s i n e r e a s e s fr o m 0 t o s % , ht e d yr i n g s h r i n k a g e o f ht e s a m P l e s d e e r e a s e fr o m 2 . 1 9% t o 0 . 9 2% , ht e P r o d u e t s b e e o m e u P 一 to 一 s t an d ar d fr o m it s o r i g i n a ll y b e l o w ht e s t a n d ar d . T h e r e a s o n fo r th e d e e r e a s e o f ht e dyr in g s hr ink a g e 1 5 t h a t t h e a d d i n g o f C Z s p r o m o t e d th e fo mr a ti o n o f t h e s e e o n d娜 g r a i n s · K E Y W O R D S d i c a l e i u m s i li e a t e , x o n o t lit e , t h e r l n a l i n s u l a t i o n m a t e ir a l s