1.WENCHASHOUSUODAOZHINEIQIANGLIEFENG

    结构补强水泥水化属于放热过程，其水化热为165～250焦尔/克，随砼水泥用量提高，其绝热温升可达50～80℃。研究表明，当砼内外温差10℃时，产生的冷缩值εc=△T/α=10/110-5=0.01%，如温差为20～30℃时，其冷缩值为0.02～0.03%，当其大于砼的极限拉伸值时，则引起结构开裂。

2.SUXINGSHOUSUODAOZHINEIQIANGLIEFENG

    房屋加固公司砼初凝之前出现泌水和水份急剧蒸发，导致失水收缩，水泥和骨料之间也产生不均匀的沉缩变形，主要发生在砼终凝之前的塑性阶段，因而称为塑性收缩，收缩量可达到1%左右。

    ZAITONGBIAOMIANSHANG，YOUQIZAIYANGHUBULIANGHEMOYABUJISHIDEBUWEICHUXIANGUILIE，KUANDUDA1～2mm，SHUYUBIAOMIANLIEFENG。SHUIHUIBIGUODA，SHUINIYONGLIANGDA，WAIJIAJIBAOSHUIXINGCHA，CUGULIAOSHAO，ZHENDAOBULIANG，HUANJINGWENDUGAO，BIAOMIANSHISHUIDADENGDOUNENGDAOZHITONGSUXINGSHOUSUOERFASHENGBIAOMIANKAILIEXIANXIANG。

HEBEIJIEGOUBUQIANGNAJIAHAO？HEBEIYUNDINGTUMUGONGCHENGYOUXIANGONGSIZHILIYUWEIMEIWEIKEHUTIGONGGENGHAODEHEBEIJIEGOUBUQIANG。

3.GANZAOSHOUSUODAOZHINEIQIANGLIEFENG

    GENJUFANGWUJIAGUGONGSIXIANGGUANSHUJUZHENGMING，JIEGOUBUQIANGDANGSHUINIJIASHUIHOUBIANCHENGSHUINIYINGHUATI，QITIJIJIANXIAO。MEI100KESHUINISHUIHUAHOUDEHUAXUEJIANSUOZHIWEI7～9ml，RUTONGSHUINIYONGLIANGWEI350kg/m3，ZEXINGCHENGKONGFENGTIJIYUE25～30L/m3ZHIJU。

    ZHEISHITONGKANGLAQIANGDUDIHEJIXIANLASHENBIANXINGXIAODEGENBENYUANYIN。YANJIUBIAOMING，MEI100KESHUINIJIANGTIKEZHENGFASHUIYUE6ml，RUTONGSHUINIYONGLIANGWEI350kg/m3，DANGTONGZAIGANZAOTIAOJIANXIA，ZEZHENGFASHUILIANGDA21L/m3。

    MAOXIKONGFENGZHONGSHUIYICHUCHANSHENGMAOXIYALI，SHITONGCHANSHENG“MAOXISHOUSUO”。YOUCIYINQISHUINISHAJIANGDEGANSUOZHIWEI0.1～0.2%;TONGDEGANSUOZHIWEI0.04～0.06%。ERTONGDEJIXIANLASHENZHIZHIYOU0.01～0.02%，GUYIYINQIGANSUOLIEFENG。