This paper expounds mineral composition, physical and chemical characteristics, activity and its evaluation of natural volcanic ash which is used as concrete admixture.
论述了天然火山灰用作混凝土掺合料的矿物组成、物化性能；火山灰活性及其评定。
Based on green chemistry and molecular design theory of concrete admixture, the cleaner synthesis of novel grafted polymeric concrete slump retaining agent has been studied.
以混凝土外加剂分子设计原理为指导，以绿色化学为基础，研究了新型接枝聚合物保坍剂的绿色合成工艺。
The test results show that by the joint action with the concrete admixture, the pozzolanic, micro-aggregate filling and durable effects of KGF powder can be realized properly.
在混凝土外加剂的共同作用下，KGF粉可以很好地发挥火山灰效应、微集料填充效应和耐久性效应。
In recent years, there are more research on metakaolin made abroad showed that the metakaolin concrete admixture can produce an alternative to traditional high-performance silica fume concrete.
近年来，国外对偏高岭土作了较多的研究表明，用偏高岭土作混凝土掺合料替代传统的硅灰可生产高性能混凝土。
At least 3 years sales working experience in the related industry, experience with concrete, concrete products, concrete admixture, cement or design institute and project supervisor is preferred.
至少3年相关行业销售经验，具备混凝土、混凝土制品、混凝土外加剂、水泥等行业或设计院、工程监理等工作经验者优先录用。
In this paper, the impact of metakaolin as well as alternative to traditional metakaolin admixture on concrete strength is studied.
本文对偏高岭土以及替代传统掺合料对混凝土强度的影响进行了试验研究。
In this experiment, the abrasion resistance of concrete mixed with expansive compound mineral admixture is studied.
试验研究了添加膨胀组分的复合矿物掺合料的混凝土耐磨性能。
Based on experiments, this paper puts forward the relationship of the strength of high performance concrete to the ratio of water-binder, the amount of admixture.
该文根据试验结果，得出了高性能混凝土强度和水胶比、混合材料掺量之间的关系。
In addition, the admixture of glue and water content than the size of silica fume concrete strength of the impact is very obvious.
此外，外加剂的掺量和水胶比的大小对硅灰混凝土强度的影响也很明显。
The amount of admixture added in silicate concrete may affect the quality of the product as well.
硅酸盐混凝土中外加剂的掺量会影响制品的质量。
In this paper the usability of a quarry dust limestone powder in concrete applications substituted for fly ash as mineral admixture is investigated.
为了有效利用石粉资源，本文对石灰岩石粉代替粉煤灰作混凝土矿物掺合料的可用性进行了研究。
How to avoid or delay the corrosion of reinforced concrete Bridges? Adding anti-corrosion admixture to cement concrete mixture is the simple and economical method.
怎样才能避免或延缓公路桥梁水泥混凝土中钢筋的腐蚀破坏，在水泥混凝土拌和物中掺加阻锈剂是一种施工简单、经济而又有效的方法。
Application of superfine mineral admixture in concrete is studied through production experiment and application effect of actual project is practiced.
进行了超细矿物掺合料应用于混凝土中的生产性试验研究和实际工程应用效果。
The selection of the admixture for its roller compacted concrete is the key to the construction of this project.
枢纽工程中的拦河坝选定全断面碾压混凝土重力坝，其碾压混凝土掺合料的选择是本工程的筑坝关键问题。
The most important technical means to make concrete with high performance is to use composite superplasticizer and super fine mineral admixture.
混凝土达到高性能最重要的技术手段是使用复合超塑化剂和超细矿物质掺合料。
Mineral admixture is one of the necessary compositions of the high performance concrete.
矿物掺合料是高性能混凝土的必备组分之一。
It is shown in the paper that addition of fine slag particles admixture in cement will significantly inhibit the corrosion of rebars in concrete.
用线性极化法和交流导纳法对微粒矿渣掺合料对混凝土中钢筋锈蚀的影响进行了研究。
The mechanism of FC admixture increasing the high performance concrete resistance to sulfate corrosion is analyzed as viewed from micro structure.
从微观孔结构分析了FC掺和料提高高性能混凝土抗硫酸盐腐蚀性能的机理。
The mineral admixture can greatly improve the crack resistance of concrete.
矿物掺合料也可以改善混凝土的抗裂性。
In this paper, the effects of fly ash, ground slag and composite admixture of them on the strength of concrete were investigated.
研究了单掺粉煤灰、磨细矿渣及它们复合后的复合掺合料对混凝土强度的影响。
No rust, of reinforced with silicon powder or mineral superfine admixture compound is mixed with C80 below, you can employ high strength concrete.
对钢筋无锈蚀，与硅粉或矿物超细掺合料复合掺用，可配制C80以下高强混凝土。
Concrete expansion admixture can compensate concrete shrink-age so that the concrete structure can resist crack and penetration efficient-ly.
掺加适量膨胀剂可补偿混凝土的收缩，使混凝土结构达到较好的裂渗控制效果。
The addition of compound anti-freezing admixture is the vital technique in the process of manufacturing durable negative temperature concrete.
指出性能优异的以防冻功能为主的多功能复合外加剂是制备负温混凝土或耐久性混凝土的技术关键。
Steel slag is not better to produce cement or mineral admixture of concrete because of poor grindability, larger fluctuation of chemical and mineral components, poor stability and so on.
由于钢渣成份波动大、易磨性差以及稳定性不好，钢渣用作水泥混合材或混凝土掺合料均难以达到高效、高值化利用的目的。
Furthermore, the early age shrinkage of concrete would be reduced with the admixture of super-fine steel slag powder.
另外，掺入磨细钢渣矿粉可以降低混凝土的早期收缩。
Therefore, it has a strong scientific and practical significance of studying the concrete with admixture for anti-sulfate corrosion performance.
因此，对掺合料混凝土抗硫酸盐侵蚀性能研究有重要的实际意义。
The sulfate radical ion (SO42-) has two actions in concrete: exciting FC admixture and corroding concrete.
指出硫酸根离子（SO42-）在混凝土中起到了激发FC掺和料及腐蚀混凝土的双重作用。
The super-accelerate complex admixture of concrete was obtained by mixing inorganic super-accelerate stimulant composition with a little organic surface active agent.
本文介绍了以无机超早强激发剂辅与少量有机表面活性剂复合而成的超早强复合外加剂。
NVC admixture is an excellent material to make Self-Compacting Concrete.
NVC自流平外加剂是制备自密实混凝土的优良外加剂。
NVC admixture is an excellent material to make Self-Compacting Concrete.
NVC自流平外加剂是制备自密实混凝土的优良外加剂。
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