1) Freezing-thawi
冻融循环飞散损失差
2) freeze-thaw cycle
冻融循环
1.
Research on damage model of fibre concrete under action of freeze-thaw cycle;
冻融循环作用下纤维混凝土的损伤模型研究
2.
Experimental investigation on different w/c concrete under biaxial compression after freeze-thaw cycles;
不同水灰比混凝土冻融循环后双轴压试验研究
3.
Experimental research on the bond performance between reinforcing bars and concrete during freeze-thaw cycle;
冻融循环对钢筋与混凝土粘结性能的试验研究
3) freeze-thaw cycling
冻融循环
1.
In this paper the deterioration mechanism by freeze-thaw cycling,the test methods about frost resistance,appraising parameters of concrete and the influencing factors mainly were represented.
影响这些试验方法的因素为:试件与传热介质的接触方式;传热介质的种类和浓度;冻融循环制度。
2.
The strength experiments of lightweight aggregate(LWA) concrete after freeze-thaw cycling in seawater under biaxial splitting tension and compression stress are preformed.
进行海水中不同冻融循环次数后轻骨料混凝土双轴拉(劈拉)压状态下的强度试验,考察试件的破坏形态和表面裂缝的走向特征。
3.
Most concrete structure buildings and dams in northern cold region are in complex stress state,and the freeze-thaw cycling has adverse effect on the mechanical properties of concrete.
北方寒冷地区的大多数混凝土结构物和水坝等处于复杂应力状态,冻融循环对混凝土的力学性能产生不利影响。
4) freezing-thawing cycles
冻融循环
1.
Deterioration characteristics of the bond between reinforcement and concrete subjected to freezing-thawing cycles and steel corrosion
锈蚀与冻融循环下钢筋与混凝土粘结退化性能
2.
In this present paper,the effects of the application of layer steel fibers and polypropylene fibers on durability of concrete were studied through the contrast experiments on the variation of the relative moving module and the mass of original concrete,layer steel fiber reinforced concrete and layer hybrid fiber reinforced concrete under freezing-thawing cycles condition.
通过普通混凝土、层布式钢纤维混凝土以及层布式混杂纤维混凝土在冻融循环下的相对动弹性模量、强度及质量变化的对比试验,研究了层布式钢纤维与聚丙烯纤维混杂应用对混凝土耐久性能的影响。
3.
Due to the big difference of temperature in the different seasons and someplace has big difference of temperature day and night,the buliding is destroyed seriously because of freezing-thawing cycles.
我国很多地区冬季混凝土冻融循环破坏非常严重,沿海地区尤为严重,因此本文通过对混凝土进行涂层保护来提高混凝土的抗冻融性能。
5) freeze-thaw cycles
冻融循环
1.
Dynamic damage model of silty clay after freeze-thaw cycles;
冻融循环下粉质黏土的动力损失模型
2.
Experimental research on dynamic properties of fly ash soil subjected to freeze-thaw cycles;
粉煤灰土冻融循环后的动力特性试验研究
3.
Effect of freeze-thaw cycles on dynamic strength of fly ash soils;
冻融循环对粉煤灰土动强度的影响
6) freezing and thawing cycle
冻融循环
1.
Experimental study on concrete behavior under biaxial compression after freezing and thawing cycle;
冻融循环后混凝土双轴压的试验研究
2.
In order to study the durability of concrete resistance to freezing this test of freezing and thawing cycle were conducted to ordinary concrete specimens,and concrete spcimens include 2% and 4% anti-freezing mixture respectively by slow freezing method.
为了研究混凝土的抗冻耐久性,采用慢冻法对普通混凝土试件、掺2%防冻剂的混凝土试件和掺4%防冻剂的混凝土试件进行了冻融循环试验。
3.
Based on the experiments on cemented soil under freezing and thawing cycles,the factors that affect mechanical properties of cemented soil are analyzed.
模拟了具有一定水泥掺量的水泥土的室内冻融循环试验 ,对不同土质、不同水泥掺量、不同养护龄期的水泥土试件在不同冻融循环次数下进行了无侧限抗压强度试验。
补充资料：冻融作用
在寒冷气候下，由于岩土中水冻结和融化等引起的若干作用的总称。包括：①冻结和融化,蒸发和凝结,升华和凝华，即岩土中水的相变；②岩土中水分、盐分和土颗粒的迁移；③土的冻胀和冻土融沉；④土的冻裂等。
随着季节的交替，冻融作用会反复发生。在此过程中，细小土粒和矿物的微裂隙中的水膜的楔开压力也随着发生变化，从而导致细小土粒和矿物的破坏，使粒径变小，这种作用称为冷生水化风化。它不同于通常所说的寒冻风化。后者是由岩石大裂隙和空隙中冰的楔开压力产生的。在非冻土区，石英的最终风化粒径比长石大。但在冻土区，由于冷生水化风化，石英的最终风化粒径(0.05～ 0.01毫米)比长石的最终风化粒径（0.1～0.05毫米）为小。反复冻融时发生的另一种物理－化学作用，是胶体和粘粒凝聚成微集合体，使土的粒径增大。上述两种不同方向的作用形成一个相同的结果，使遭受反复冻融作用的岩土的粉粒含量大为增加。同时，形成一系列特殊的冷生地貌，即冰缘地貌。
随着季节的交替，冻融作用会反复发生。在此过程中，细小土粒和矿物的微裂隙中的水膜的楔开压力也随着发生变化，从而导致细小土粒和矿物的破坏，使粒径变小，这种作用称为冷生水化风化。它不同于通常所说的寒冻风化。后者是由岩石大裂隙和空隙中冰的楔开压力产生的。在非冻土区，石英的最终风化粒径比长石大。但在冻土区，由于冷生水化风化，石英的最终风化粒径(0.05～ 0.01毫米)比长石的最终风化粒径（0.1～0.05毫米）为小。反复冻融时发生的另一种物理－化学作用，是胶体和粘粒凝聚成微集合体，使土的粒径增大。上述两种不同方向的作用形成一个相同的结果，使遭受反复冻融作用的岩土的粉粒含量大为增加。同时，形成一系列特殊的冷生地貌，即冰缘地貌。
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