冻融循环

冻融循环对粉煤灰土动强度的影响

Effect of freeze-thaw cycles on dynamic strength of fly ash soils

冻融循环对轻质填料抗压强度的影响

Influence of Freeze-Thaw Cycles on Compressive Strength of WFS-FA-EPS Beads Lightweight Fillers

冻融循环对FRP增强混凝土柱影响试验研究

Experimental study of effects of freeze-thaw cycle on concrete columns strengthened with FRP laminates

本文通过162块新老混凝土粘结Z形剪切试件的试验，研究了冻融循环对新老混凝土粘结面剪切性能的影响。

The influence of cyclic freeze-thaw on shear strength of bonding interface between fresh and old concrete is studied experimentally .

冻融循环处理对水凝胶经冷冻干燥或烘箱干燥后的NaSA载药率影响不大。

The cycle freezing-thawing process showed little effects on the NaSA load ratios of the freeze-dried or oven-dried hydrogels .

在叶圆片冻融循环中NBT被还原为甲。

NBT was reduced to formazans in freeze thaw cycles .

而玻璃纤维增强聚合物（GFRP）的耐久性能略差，水环境、碱环境、湿热环境以及冻融循环对GFRP均产生了较大的影响。

However , GFRP ( glass fiber reinforced polymer ) specimens exhibited a little decrease in mechanical property after aggressive environments exposure .

试件经受了幅度为+10℃至-30℃（+50°F至-22°F）的温度变化冻融循环0、30、60及90次。

Specimens were experienced zero , 30 , 60 and 90 freezing cycles with the range of temperature change between + 10 ℃ and - 30 ℃( + 50 ° F and - 22 ° F ) .

总的来看，碳化、有限次数的冻融循环、盐溶液干湿循环对CFRP和GFRP纵向受拉性能影响不大。

Anyway , carbonation , freeze and thaw cycles for limited times and wet and dry cycles in salt solution affect slightly on the tensile performance of CFRP and GFRP . 2 .

采用快速冻融循环试验和湿热试验，研究了腐蚀环境对FRP与混凝土粘结性能、FRP加固混凝土梁、柱受力性能的综合影响。

Based on the fast freeze-thaw test and the wet-thermal test , the influence on bond behavior between FRP and concrete , mechanical behavior of concrete beam and column strengthened with FRP caused by aggressive environments was studied .

结果表明：在冻融循环条件下，混凝土的饱水度增加速率在周围覆盖NaCl溶液时明显高于周围覆盖水时的，且吸入溶液量随浓度提高而增加。

The results show that the increasing rate of the saturation degree in concrete surrounded with NaCl solution is much higher than that surrounded with water , and the solution absorption in concrete increases with the increase of NaCl concentration .

由于建立RBF网络编码简单、误差曲线平滑、操作方便，故室内外冻融循环次数等效关系模型采用RBF网络模型较为理想。

Because RBF codes is simple , the curve of error is smoother , and easy to apply , therefore for the equivalent relational model of indoor and outside thaw-freeze cycle number of times , uses the RBF network to be more ideal .

进一步的研究指出，混凝土在DDF作用下的强度基本上随着冻融循环次数的增加而降低，而且OPC和APC的冻融强度损失明显高于HSC和HPC。

Further research indicates that strength of concretes subjected to DDF decreased alone with the increasing of freezing-thawing cycles , and the strength losing of OPC and APC is more evident than those of HSC and HPC .

再将碳纤维筋和玻璃纤维筋进行50&300次的冻融循环，得到了酸碱盐介质腐蚀与冻融循环对FRP筋拉伸强度和弹性模量的性能退化影响量。

Secondly , after 50 & 300 Freeze-thaw cycles on GFRP and CFRP bars , the tensile test was performed , acquiring the corrosive effect of three solutions and the Freeze-thaw effect on the properties degradation of tensile strength and elastic module of FRP bars .

通过对粉煤灰加气混凝土在不同环境条件下历经8a的长期观测，并结合相应的实验室冻融循环、干湿循环、以及人工和自然碳化试验研究，分析探讨了其长期强度的劣化机理。

Based on the test results of freezing and thawing , dry-moisture cycling , carbonation under manmade and natural conditions , the deterioration mechanism of long-term compressive strength of flyash aerated concrete is studied .

对红砂岩和页岩进行了开放饱水状态下冻融循环试验，一次冻融循环试验包括在-20℃低温冷柜中冻结12h和在常温20℃纯水中融化12h。

The freezing and thawing tests were conducted at opening saturating conditions on red sandstone and shale , one cycle of freeze-thaw test including 12 hours freezing at - 20 ℃ in freezer chamber and 12 hours thawing at 20 ℃ in distilled water .

采用后添加VTES法制得的硅丙乳液，其吸水率则随VTES用量的增加而升高，冻融循环后发生破乳。

The water absorption of silicon-acrylic latex , which was made by post adding VTES , increased as the VTES content increased , and the emulsion was broken after freeze thawing recycle .

本文对渠道实地铺设和室内冻融循环对GCL力学性能影响进行了试验研究，探讨了GCL的主要老化因素和外护材料的抗老化效果，以及冻融对GCL力学性能的影响研。

The channel field laying and indoor freezing and thawing cycles on mechanical properties of GCL was investigated , explores the main GCL aging factors and outer protective material for anti-aging effects , as well as thawing on mechanical properties of GCL influence research .

冻融循环对混凝土力学性能的影响

Effect of freezing - thawing cycles on mechanical properties of concrete

分析了混凝土冻融循环劣化新的原因和机理。

A new interpretation of freeze-thaw deterioration of concrete is proposed .

冻融循环对兰州黄土边坡稳定性的影响分析

Influence Analysis of Freezing-thawing on Stability of Loess Slope in Lanzhou

冻融循环作用下混凝土的剪切强度试验研究

Experimental Research on Shear Strength of Concrete Subjected to Freezing-and-thawing

冻融循环可以改变土的力学性质，这种影响是通过改变土的结构性而产生的。

Freezing-thawing changes the mechanical properties of soil through changing its structure .

硫酸盐渍土在多次冻融循环时的盐胀累加规律

Salt Expansion Accumulation of Sulphate Salty Soil under Freezing and Thawing Cycles

冷冻外科连续冻融循环理论研究

Theoretical Study on the Successive Freeze-thawing Circle of Cryosurgical Operation

加筋挡土墙冻融循环过程中水分运移试验研究

Experimental Study on Water Migration of Reinforced Retaining Wall in Freezing-Thawing Cycle

半刚性基层材料冻融循环强度变化分析

Strength Changes of Semi-rigid Base Materials Subjected to Freeze-thaw Cycling

混凝土冻融循环的交流阻抗研究

Study of Freezing and Thawing Test of Concrete by AC Impedance Technique

冻融循环对含盐土物理力学性质影响的试验研究

Influence of freeze-thaw cycles on physical and mechanical properties of salty soil

粉煤灰土冻融循环后的动力特性试验研究

Experimental research on dynamic properties of fly ash soil subjected to freeze-thaw cycles