1) anti-cracking
防裂
1.
The anti-cracking techniques are presented in this paper,including the double mixture technique,the post-pouring and cool water pipes set technique and the favorable casting time chosen to control the maximum temperature and the temperature difference between the outside and the inside.
施工后的主墩底座混凝土内实外美,未产生任何裂缝,这表明上述技术对于防裂行之有效。
2.
The specific anti-cracking measures are as follows: choose the proper type of cement and additive; adopt low-temperature water and aggregate agitation concrete; optimize concrete.
具体防裂技术措施有:选用合理的水泥品种和外加剂;采用低温的水和骨料搅拌混凝土;优化混凝土浇筑方案;加强混凝土的养护。
3.
The requirement in the codes makes the problems of the temperature control and anti-cracking of massive concrete for pier bases and pier shafts become more striking and therefore,the rigorous and effective technical means and construction measures should be taken.
按铁道部新颁布的混凝土耐久性设计标准,北方桥梁水位变动区的下部结构混凝土强度等级达C45,这使得承台、墩身等大体积混凝土的温控及防裂问题更为突出,需要采取严格有效的技术手段和工程措施。
2) anti-crack
防裂
1.
Mix ratio of mass anti-crack concrete for hydraulic structures design & test;
水工大体积防裂混凝土配合比的设计和试验
2.
28 span (both sides of Baoan Highway) in the main line bridge overpassing Huning Railway in A30 Expressway of Shanghai North Ring, and introduces the anti-crack measures taken in the construction and the results.
该文对上海北环A30高速公路上跨沪宁铁路主线桥第28孔(宝安公路两侧)薄壁墩施工中可能出现的问题进行了分析,并介绍了施工中采用的防裂措施和效果。
3.
It has good seepage resistance and anti-crack performances.
优化配合比的基准混凝土中,掺入聚丙烯纤维丝和粉煤灰,配制出的纤维抗掺混凝土,其抗拉、抗折强度提高,并有良好的抗渗漏、防裂性能,可有效改善混凝土的耐久性。
3) crack control
防裂
1.
At the same time,for ensuring the operating safety of powerhouse structure,the designer made deeply study and analytic calculation,and proposes rational structural form of powerhouse and water-tight concrete materials with crack control.
为充分利用水能资源,获得更大的经济效益,并减少前期工程投资,董箐水电站厂房采取分期建设的设计思路,同时为保证厂房结构的运行安全可靠,设计时进行了深入的研究和计算分析,提出了合理的厂房结构形式和防裂、抗渗混凝土材料。
2.
The coarse aggregate and fine aggregate of the concrete used in Tengzigou arch dam are all consisted of feldspar and quartz sandstone,which is not useful for heat property of concrete,and this leads the crack control by temperature control is of great difficulty.
混凝土施工期温度控制是混凝土拱坝防裂的关键技术。
4) crack prevention
防裂
1.
Objective To study the preparation of new aqueous gastric-soluble pharmaceutical film coating premix excipient and its properties of moisture and crack prevention.
将用该预混辅料配制的包衣液分别对复方丹参片、花红片、普乐安片和钙尔奇D片进行包衣,在温度(40±2)℃、相对湿度(75±5)%的条件下进行裸片加速试验7d,考察其防潮防裂性能;通过对该预混辅料中镁元素含量及100目筛余率的测定,考察其均匀度和粒度。
2.
Concentrated on simulative analysis of 3-D temperature and stress fields of concrete dams, determination of thermodynamic parameters, cracking mechanism, crack prevention , crack control and crack repairs ,the mainly work in this dissertation are as follows:1.
本文围绕混凝土坝三维温度场与应力场仿真分析、热力学参数确定、裂缝成因机理、防裂限裂措施及裂缝补救方法等，作了如下的工作： 1。
6) crack prevention and crack resistance
防裂抗裂
1.
The performance of bearing capacity,crack prevention and crack resistance of concrete base slab will be improved when the steel fiber is mixed into it.
在混凝土地基板中掺入钢纤维 ,可以提高混凝土地基板的防裂抗裂性能及承载力。
补充资料：防裂硅霜
分子式：
CAS号：
性质：由愈合剂、硅油和高级脂肪酸等原料经乳化制成的油包水型白色膏状物，为一功能性防护用品，经生物学检测，对人体无毒、无刺激、不致敏，符合化妆品标准，用于预防和治疗皮肤干燥、手足粗糙、开裂，适于长期接触油类、涂料、酸碱、吸水、粉尘等工种的工人皮肤保护。还可用于预防冻伤的复发和治疗已发生的冻伤。
CAS号：
性质：由愈合剂、硅油和高级脂肪酸等原料经乳化制成的油包水型白色膏状物，为一功能性防护用品，经生物学检测，对人体无毒、无刺激、不致敏，符合化妆品标准，用于预防和治疗皮肤干燥、手足粗糙、开裂，适于长期接触油类、涂料、酸碱、吸水、粉尘等工种的工人皮肤保护。还可用于预防冻伤的复发和治疗已发生的冻伤。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条