西北高寒干燥地区的碾压混凝土工程,由于引气困难,导致其抗冻耐久性得不到保证。
Freezeproof durability of roll compacted concrete engineering in northwest cold and dry areas can not be guaranteed because entrainment of air is difficult.
作为评价混凝土抗冻性的参数之一,混凝土气泡间距系数越来越受到重视。
ABSTRACT: Being a parameter of concrete antifreeze evaluation, air void spacing factor had got much more attention.
摘要采取长时间浸水马歇尔试验和多循环冻融劈裂试验方法,对掺加了水泥、抗剥落剂的安山岩集料沥青混凝土水稳定性能进行研究。
Long term immersing Marshall test and frozen-thaw cycle test were used to investigate the anti-stripping performance of andesite asphalt mixture using cement and anti-stripping agent.
适用范围:应用于地上、地下高强度的混凝土工程及抗冻、抗渗、耐磨性要求的混凝土工程。
Applicable scope: overground and underground high stringent concrete project. And anti - freeze, impervious, abrasion resistant concrete project.
本文主要介绍C30P12F100抗冻大体积泵送混凝土的配合比设计试配及工程应用情况。
Testing matching ratio and quality controlling of anti-frozen massive pumping concrete C30P12F100 is introduced with the construction application.
通过对试验数据的整理分析,给出提高混凝土构件的表观抗冻耐久性的合理配合组成。
After analyzing the trial data, it gives the reasonable mix proportions for enhancing apparent freezing and thawing resistance durability of concrete member.
本文重点介绍坝体渗流控制,混凝土面板抗冻设计,及新型嵌缝止水材料,面板表面涂料的研究。
Seepage control in dam, design of freezing resistance for concrete face slab, new caulking water sealing material and surface coat on face slab are mainly presented.
总之在大量的实验基础上,对不同掺量的超细矿渣粉高性能混凝土的强度、体积稳定性、抗冻性等耐久性进行了全面的分析。
In a word, based on plenty of experiment, the intensity, volume stability and freezing-resistance of this new kind of high performanced concrete have been completely analyzed.
研究了粉煤灰和磨细矿渣对高强轻骨料混凝土抗渗及抗冻性能的影响。
Effects of fly ash and pulverized blast furnace slag on resistance of permeability and resistance of freezing of high strength lightweight aggregate concrete (HSLWAC) were investigated.
经聚苯板与混凝土粘合力、塑料胀管抗拔力、压缩率及抗冻试验表明该体系性能可靠、安全度高;
The tests of bonding power between polystyrene board and concrete, plastic expanded tube pull- out, compressibility, freeze resistance show the system property is reliable and high safe.
试验研究了含气量对碾压混凝土抗冻性的影响。
The effect of air content on the frost resistance of roller compacted concrete(RCC)is discussed.
通过配合比设计试验,分析影响混凝土抗冻融的因素。
Based on the designing and experiment of mix-proportion, the elements influenced on concrete resisting to freeze-thaw damage were analysed.
抗冻性是道路水泥混凝土主要的特性,它在很大程度上决定着水泥混凝土路面的耐久性。
Freeze resisting property is the main function of the road cement concrete. It determines the enduring property of the cement concrete pavement.
为配合青藏铁路工程应用,配制抗冻性高、强度较高、适合于青藏铁路预应力混凝土梁的高性能混凝土。
An experimental investigation was conducted to provide high-performance concrete, with high frost resistance and proper strength, to construction of precast elements of Bridges in Qing-Zang railway.
最后,本文提出用BP神经网络预测混凝土抗冻耐久性系数的方法。
Finally, a new approach (BP Network) to predicting the durability factor of concrete has been proposed here.
在盐卤水中,混凝土一般不会发生冻融破坏,混凝土抗冻性取决于混凝土抗盐溶液化学侵蚀的性能。
In bittern solution, freezing thawing will not destroy all concretes, and the frost resistance of concrete is decided by the capability of concrete resisting to chemical corrosion.
本文通过试验确定赛柏斯、耐渗、JL三种水泥基渗透结晶型防水材料对混凝土的强度、抗渗性能和抗冻等级的改变。
The text overpass test to co (?) firm the effect of the three kind of cement based capillary crystalline waterproof material Xypex, Naishen, JL, which can modify the strength.
本试验主要研究一种新型的绿色涂料喷涂聚脲弹性体材料对混凝土抗冻融性能的影响。
Spray polyurea is not harm to the environment and it is also a new techmology, So the application to protect the concrete is mainly introduced.
介绍了寒区混凝土无机防护剂产品,并且通过实验研究测定了该防护剂产品对混凝土抗渗性、抗冻性以及抗压强度的影响。
This article introduces an inorganic protective agent for concrete in cold climate, and the influence on impermeability, freezing resistance and compressive strength were analyzed.
矿渣混凝土的抗冻融耐久性明显优于同等级的普通混凝土;
The freeze thaw durability of GGBS concrete is much better than the same strength OPC concrete.
采取长时间浸水马歇尔试验和多循环冻融劈裂试验方法,对掺加了水泥、抗剥落剂的安山岩集料沥青混凝土水稳定性能进行研究。
Long term immersing Marshall test and frozen-thaw cycle test were used to investigate the anti-stripping performance of andesite asphalt mixture using cement and anti-stripping agent.
阐述了混凝土冻融破坏的原因、机理,并通过实验验证了硅粉对混凝土抗冻性能的影响。
This paper expounds origin and mechanism of concrete of freezing and thawing destroy. The test result validates that silicon powder have great impact on concrete frost resistance.
根据我国的实际情况,初步探讨混凝土抗冻性定量化设计的方法。
Finally, the quantitative design method for the freeze proof durability of concrete is suggested, according to the present condition of the country.
研究结果表明,钢纤维提高了混凝土的抗冻性能。
The study result shows that steel fiber improved the frost-resisting property of concrete.
着重考察了普通强度等级的新型碱矿渣混凝土抗冻性能。
The frost resistance of a new type of alkali-slag concrete in the ordinary strength was discussed in this paper.
混凝土抗冻融300次时,动弹性模量为97%,混凝土具有优良的抗冻融耐久性。
The concrete with this product has excellent anti-frost durability, with a relative dynamic elastic modulus of 97% after 300 cycles of freezing-and-thawing.
混凝土抗冻融300次时,动弹性模量为97%,混凝土具有优良的抗冻融耐久性。
The concrete with this product has excellent anti-frost durability, with a relative dynamic elastic modulus of 97% after 300 cycles of freezing-and-thawing.
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