中科新闻网凿壁借光的故事意思:英语高手，帮忙翻译工程论文啊，不要在线翻译啊，谢谢
来源：百度文库 编辑：中科新闻网 时间：2024/05/12 07:45:25
为了防止裂缝，减轻温度应力可以从控制温度和改善约束条件两个方面着手。
控制温度的措施如下：
（1）采用改善骨料级配，用干硬性混凝土，掺混合料，加引气剂或塑化剂等措施以减少混凝土中的水泥用量；
（2）拌合混凝土时加水或用水将碎石冷却以降低混凝土的浇筑温度；
（3）热天浇筑混凝土时减少浇筑厚度，利用浇筑层面散热；
（4）在混凝土中埋设水管，通入冷水降温；
（5）规定合理的拆模时间，气温骤降时进行表面保温，以免混凝土表面发生急剧的温度梯度；
（6）施工中长期暴露的混凝土浇筑块表面或薄壁结构，在寒冷季节采取保温措施；
2 controls of the temperatures and prevent°from the measure of the crack
For prevent°froming the crack, ease temperature should dint can from control the temperature and improve 2 of the stipulation condition to begin.
Measure that controls the temperature is as follows:
(1)The adoption improvement bone anticipates the class to go together with, use dry the rigidity concrete,the admixture anticipate, adding to lead spirit or an etc. measures to reduce the cement dosage in the concrete;
(2)Mix to match the concrete add the water or use the water to cool off crushed stones the since low concrete sprinkle to build the temperature;
(3)Reduce to sprinkle to build the thickness when hot day sprinkle to build the concrete, make use of to sprinkle to build the level to spread the heat;
(4)Lay the pipe line in the concrete, open into the cold water to reduce the heat;
(5)The provision is reasonable of dismantle the mold time, the air temperature declines suddenly carry on the surface heat preservation, in order to prevent the concrete surface takes place the temperature steps degree of the nasty play;
(6)The concrete that under construction long-term expose sprinkles to build a piece of surface or thin wall structures, adopting the heat preservation measure in the cold season;
2 controls of the temperatures and prevent°from the measure of the crack
For prevent°froming the crack, ease temperature should dint can from control the temperature and improve 2 of the stipulation condition to begin.
Measure that controls the temperature is as follows:
(1)The adoption improvement bone anticipates the class to go together with, use dry the rigidity concrete,the admixture anticipate, adding to lead spirit or an etc. measures to reduce the cement dosage in the concrete;
(2)Mix to match the concrete add the water or use the water to cool off crushed stones the since low concrete sprinkle to build the temperature;
(3)Reduce to sprinkle to build the thickness when hot day sprinkle to build the concrete, make use of to sprinkle to build the level to spread the heat;
(4)Lay the pipe line in the concrete, open into the cold water to reduce the heat;
(5)The provision is reasonable of dismantle the mold time, the air temperature declines suddenly carry on the surface heat preservation, in order to prevent the concrete surface takes place the temperature steps degree of the nasty play;
(6)The concrete that under construction long-term expose sprinkles to build a piece of surface or thin wall structures, adopting the heat preservation measure in the cold season;