DANGSHIWAIRIPINGJUNQIWENLIANXU5dWENDINGDIYU5℃JIJINRUDONGQISHIGONG，DANGSHIWAIRIPINGJUNQIWENLIANXU5dGAOYU5℃JIJIECHUDONGQISHIGONG。HUNNINGTUGONGCHENGDONGQISHIGONGYINGZHUYIYIXIASHIXIANG：

（1）混凝土养护期间的温度测量应符合下列规定：

1）CAIYONGXUREFAHUOZONGHEXUREFASHI，ZAIDADAOSHOUDONGLINJIEQIANGDUZHIQIANYINGMEIGE4～6hCELIANGYICI；

2）CAIYONGFUWENYANGHUFASHI，ZAIDADAOSHOUDONGLINJIEQIANGDUZHIQIANYINGMEIGE2hCELIANGYICI；

3）CAIYONGJIAREFASHI，SHENGWENHEJIANGWENJIEDUANYINGMEIGE1hCELIANGYICI，HENGWENJIEDUANMEIGE2hCELIANGYICI；

4）HUNNINGTUZAIDADAOSHOUDONGLINJIEQIANGDUHOU，KETINGZHICEWEN。

（2）拆模时混凝土表面与环境温差大于20℃时，混凝土表面应及时覆盖，缓慢冷却。

（3）冬期施工混凝土强度试件的留置应增设与结构同条件养护试件，养护试件不应少于2组。同条件养护试件应在解冻后进行试验。

（4）冬施浇筑的混凝土，其临界强度应符合下列规定：

1）DANGSHIWAIZUIDIQIWENBUDIYU-15℃SHI，CAIYONGZONGHEXUREFA、FUWENYANGHUFASHIGONGDEHUNNINGTUSHOUDONGLINJIEQIANGDUBUYINGXIAOYU4.0MPa；DANGSHIWAIZUIDIQIWENBUDIYU-30℃SHI，CAIYONGFUWENYANGHUFASHIGONGDEHUNNINGTUSHOUDONGLINJIEQIANGDUBUYINGXIAOYU5.0MPa。

2）DUIQIANGDUDENGJIDENGYUHUOGAOYUC50DEHUNNINGTU，BUYIXIAOYUSHEJIHUNNINGTUQIANGDUDENGJIZHIDE30%。

3）DUIYOUKANGSHENYAOQIUDEHUNNINGTU，BUYIXIAOYUSHEJIHUNNINGTUQIANGDUDENGJIZHIDE50%。

4）DANGSHIGONGXUYAOTIGAOHUNNINGTUDEQIANGDUDENGJISHI，YINGANTIGAOHOUDEQIANGDUDENGJIQUEDINGSHOUDONGLINJIEQIANGDU。