ettringite相关论文
Properties and Mechanism of Mine Tailings Solidified and Filled with Fluorgypsum-based Binder Materi
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Low alkaline liquid state setting accelerator(LSA) for Portland cement was prepared in laboratory from aqueous solution ......
The isothermal absorption properties and kinetic model of Cr (Ⅵ) and Cr (Ⅲ) onto ettringite were investigated using th......
Significant efforts have been made in revealing the mechanism of thaumasite formation in concrete, which continues to be......
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The carbonation process for stabilization of heavy metals in mine tailings was investigated.This investigation was perfo......
Acidic Resistance of Calcium Sulfoaluminate Cement Based Concretes Assessed by Dynamic Leaching Test
Calcium sulfoaluminate (CSA) cements can be a solution to reduce the environmental impact of concrete,thanks to the lowe......
Calcium Aluminate Cement as A Precursor for Ettringite Formation :From Hydration to Applicative Prop
Since its invention in 1908, calcium aluminate cement (CAC) has been used as a full binder to formulate materials in a w......
Calcium sulphoaluminate cements (CSA) can represents a potential valid substitution for OPC in the global challenge of C......
Ettringite is a common phase occurring during the hydration of Portland cements.It is also the main hydration product in......
Compared with the added gypsum, protogenetic anhydrite is those anhydrite in clinker and admixture.And using protogeneti......
Calcium sulfoaluminate (C4A3(S)) is the main constituent of a promising low-CO2 alternative to ordinary Portland cement.......
In this paper, the capacity of solidification and mechanism of ettringite to heavy metal ions (Cr, Pb, Zn, Cd,Cu) with d......
Cement manufacture generates environmental problems due, among others, to the greenhouse gases, especially CO2, emitted ......
Microstructure Change and Failure Mechanism of Blended Mortars with Different W/B under Sulfate Atta
Sulfate attack is an environmental issue for concrete structure exposed to aggressive environment contains sulfate ions.......
The formation and transformation characteristics of ettringite played an extremely important effect on the accelerated h......
Evaluation of Sulfate Resistance against Sodium Sulfate and Magnesium Sulfate from the Standpoint of
The new evaluation test method with small sized specimens of 8mm cubic for short period was investigated in our former s......
This study aims to investigate the degradation of cement-based materials exposed to external sulfate attack.Mortar speci......
Calcareous gaize, a rock with a high content of detrital quartz, silica and calcite, belongs to the group ot sedimentary......
By selecting and compounding44different cementitious materials and chemical additives,two types of cement-based self-lev......
Comb-like copolymers as polycarboxylate ether (PCE) are added to concrete to make it more fluid and facilitate its place......
Significance of compaction time delay on compaction and strength characteristics of sulfate resistan
The addition of cement for stabilization of expansive soils is one of the most commonly used methods.As with every calci......
Crystal Growth of [Ca3Al(OH)6?12H2O]2?(SO4)3?2H2O (Ettringite) Studied Under Microgravity Conditions
On parabolic flights, the growth of ettringite, [Ca3Al(OH)6?12H2O]2?(SO4)3?2H2O, a major reaction product of cement with......
本文通过对荣华二采区10...
研究了5%掺量下,不同质量比的非晶态C_(12)A_7/CaSO_4·2H_2O体系对OPC净浆凝结时间、流动性和早期抗压强度的影响,通过XRD和SEM对......
The long-term performance of moderate heat Portland cement with double-expansive sources (DE cement) in the system of hi......
The hydrating products and microstructure of permeablity resisting portland cement have been studied by x-ray diffractio......
The formation and transformation of ettringite were studied by measuring the ion concentration in liquid phase and analy......
The assessment of magnesium sulphate attack on concretes containing rice husk ash (RHA, 20wt% of the cementitious materi......
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流化床燃煤固硫灰渣（以下简称固硫灰渣）中无水石膏水化产物的种类及特性对灰渣的资源化利用有较大影响.采用XRD、SEM和EDS分析技术研......
采用了加速化学反应法、Ｘ射线衍射法、ＳＥＭ法、ＴＧ和ＤＴ等方法对钙矾石材料硬化体的形成和风化反应过程以及钙矾石材料的各种物理化学特性进行......
分析了混凝土膨胀剂ＭＥＡ产生体积膨胀的原因及其对（普通）硅酸盐水泥强度的影响机理，Ｘ射线衍射分析结果说明膨胀剂ＭＥＡ的膨胀作用与水泥强度发展......
Laboratory tests on enhancing strength of cement stabilized organicsoil with addition of phosphor gy
In order to improve the engineering properties oforganic soil, a new stabilization agent is developed by theaddition of ......
为探究以钒尾矿为主要硅质原料制备泡沫混凝土的可行性,采用粒度分析法、强度测试、X射线衍射仪(XRD)和场发射扫描电镜(SEM)等测试......
对开裂的混凝土工程的周边环境进行检测分析,环境水中硫酸盐的腐蚀等级为中等腐蚀。运用扫描电子显微技术对受破坏混凝土进行微观......
用静态法测定钙矾石碳化率ｘ与时间ｔ的关系曲线，采用初始反应数值测定控制步骤基元反应活化能。结果表明：在通常条件下钙矾石极易被碳化......
ettringite 的形成和转变被在液相测量离子集中并且在固体分析作文学习，阶段。ettringite 形成和转变上的效果 ofC_3A，石膏，石灰和 C-......
Two different mechanisms have been proposed for the formation of ettringite, i.e.through-solution reaction and topochemi......
On the Ettringite Form of Sulfate Attack: Part 2. The Expansive Mechanism of Concrete Caused by Seco
In part 1 of this two-part series, the formation mechanism of secondary ettringite has been discussed. In this part, the......
The hydration reaction of a mixture of tricalcium aluminate (C3A) and gypsum with the molar ratio of 1:3 was carried out......
磷石膏是磷酸生产过程中用硫酸处理磷矿时产生的固体废渣,其主要成分是二水硫酸钙。用非煅烧的磷石膏作为主要原料,添加砂石、水泥......
主要通过C3A—CaSO4·2H2O，在不同碱性溶液中钙矾石的形成、晶体形貌变化以及制备得到的纯钙矾石在不同碱性溶液中的溶解来研究......
为查明钙矾石对Pb（Ⅱ）能否产生化学俘获以及发生俘获所需的必要条件，在室温下试用Pb（NO3）2与Al2（SO4）3、NaOH等进行人工液相合成Ph类钙矾......
试验研究了不同养护温度和养护方式对含石膏白云岩骨料成型的砂浆试件膨胀率的影响，并应用XRD分析测试方法，分析砂浆试件内部硫酸盐......
钙矾石是水泥的一种重要水化学产物。经过反复摸索，本研究找出了合成了Ｆｅ２Ｏ３的克分子百分含量从０至１００的钙面庞大溶体的条件。精确测定了含Ｆｅ２Ｏ３量......
铁合金渣是具有潜在水硬性和火山灰活性的物质,经物理激发、化学激发后可制备成高强度的胶凝材料。由于其富含Al2O3,添加化学激发......
