Influence of pH on the chloride binding capacity of Limestone Calcined Clay Cements (LC3)

2020 ◽  
Vol 131 ◽  
pp. 106031 ◽  
Author(s):  
François Avet ◽  
Karen Scrivener
Keyword(s):  
Binding Capacity ◽  
Chloride Binding ◽  
Calcined Clay ◽  
Influence Of Ph

scholarly journals Chloride Binding Capacity and Its Effect on the Microstructure of Mortar Made with Marine Sand

2021 ◽  
Vol 13 (8) ◽  
pp. 4169
Author(s):  
Congtao Sun ◽  
Ming Sun ◽  
Tao Tao ◽  
Feng Qu ◽  
Gongxun Wang ◽  
...  
Keyword(s):  
Binding Capacity ◽  
Chloride Content ◽  
Chloride Ions ◽  
Fine Aggregate ◽  
Chloride Binding ◽  
River Sand ◽  
Total Chloride ◽  
Curing Period ◽  
Marine Sand ◽  
Bound Chloride

Chloride binding capacity and its effect on the microstructure of mortar made with marine sand (MS), washed MS (WMS) and river sand (RS) were investigated in this study. The chloride contents, hydration products, micromorphology and pore structures of mortars were analyzed. The results showed that there was a diffusion trend for chloride ions from the surface of fine aggregate to cement hydrated products. During the whole curing period, the free chloride content in the mortars made by MS and WMS increased firstly, then decreased and stabilized finally with time. However, the total chloride content of three types of mortar hardly changed. The bound chloride content in the mortars made by MS and WMS slightly increased with time, and the bound chloride content included the MS, the WMS and the RS arranged from high to low. C3A·CaCl2·10H2O (Friedel’s salt) was formed at the early age and existed throughout the curing period. Moreover, the volume of fine capillary pore with a size of 10–100 nm increased in the MS and WMS mortar.

Effect of triethanolamine on the chloride binding capacity of cement paste with a high volume of fly ash

2021 ◽  
pp. 125612
Author(s):  
Yibiao Teng ◽  
Songhui Liu ◽  
Zhaocai Zhang ◽  
Jiangwei Xue ◽  
Xuemao Guan
Keyword(s):  
Fly Ash ◽  
Cement Paste ◽  
Binding Capacity ◽  
High Volume ◽  
Chloride Binding

Improving the chloride binding capacity of cement paste by adding nano-Al2O3

2019 ◽  
Vol 195 ◽  
pp. 415-422 ◽  
Author(s):  
Zhiqiang Yang ◽  
Yun Gao ◽  
Song Mu ◽  
Honglei Chang ◽  
Wei Sun ◽  
...  
Keyword(s):  
Cement Paste ◽  
Binding Capacity ◽  
Chloride Binding

Corrosion resistance of steel bar and chloride binding capacity of cementitious materials with internal chloride

2019 ◽  
Vol 139 (3) ◽  
pp. 1903-1914
Author(s):  
Yongmin Yang ◽  
Tongsheng Zhang ◽  
Zhaoheng Li ◽  
Kexin Zhao ◽  
Jiangxiong Wei ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Binding Capacity ◽  
Cementitious Materials ◽  
Chloride Binding ◽  
Steel Bar

scholarly journals Effect of Fly Ash as Cement Replacement on Chloride Diffusion, Chloride Binding Capacity, and Micro-Properties of Concrete in a Water Soaking Environment

2020 ◽  
Vol 10 (18) ◽  
pp. 6271 ◽  
Author(s):  
Jun Liu ◽  
Jiaying Liu ◽  
Zhenyu Huang ◽  
Jihua Zhu ◽  
Wei Liu ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Fly Ash ◽  
Binding Capacity ◽  
Chloride Ion ◽  
Chloride Content ◽  
Chloride Ions ◽  
Chloride Diffusion ◽  
Chloride Binding ◽  
Test Results ◽  
New Equation

This paper experimentally studies the effects of fly ash on the diffusion, bonding, and micro-properties of chloride penetration in concrete in a water soaking environment based on the natural diffusion law. Different fly ash replacement ratio of cement in normal concrete was investigated. The effect of fly ash on chloride transportation, diffusion, coefficient, free chloride content, and binding chloride content were quantified, and the concrete porosity and microstructure were also reported through mercury intrusion perimetry and scanning electron microscopy, respectively. It was concluded from the test results that fly ash particles and hydration products (filling and pozzolanic effects) led to the densification of microstructures in concrete. The addition of fly ash greatly reduced the deposition of chloride ions. The chloride ion diffusion coefficient considerably decreased with increasing fly ash replacement, and fly ash benefits the binding of chloride in concrete. Additionally, a new equation is proposed to predict chloride binding capacity based on the test results.

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