Effects of Minerals on the Dissolvable Ion Concentration and pH Value of Hardened Cement

Hong Bo Zhu; Pei Ming Wang; Ji Dong Zhang

doi:10.4028/www.scientific.net/AMR.261-263.270

Paper Titles

Mechanical Properties and Failure Criteria of Concrete under Biaxial Tension and Compression
p.252

Experimental Study on Mechanical Properties of Concrete under Triaxial Compression
p.256

Research on the Biaxial Tensile Strength Test and Formula of Cement Concrete
p.260

Research on Strength and Microstructure of Cement with Sodium Sulfate Corrosion
p.265

Effects of Minerals on the Dissolvable Ion Concentration and pH Value of Hardened Cement
p.270

Simulations on Sulfate Ion Diffusivity in Concrete Column under Random Excitations
p.275

Study on Fiber Concrete Impermeability Test and its Application in Subway Station
p.280

Research on Damage Evolution of Polypropylene Fiber Concrete under Splitting Load
p.287

Analysis of RMS Acceleration Response Spectrum for Random Pedestrian Loads
p.292

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 261-263Effects of Minerals on the Dissolvable Ion...

Effects of Minerals on the Dissolvable Ion Concentration and pH Value of Hardened Cement

Abstract:

The influence of grinded blast furnace slag (GBFS), high-calcium fly ash (HF), desulfurized gypsum (DG) and Na₂SO₄ (NS) on dissolvable ion Moore concentration and pH value of hardened cement is researched. In liquor with hardened cement powder, the dissolvable ion Moore concentration of Mg, Si or Al is according to each ion content in raw materials of cement paste. In materials system of cement-slag-HF, NS reduces the ion Moore concentration of Al and increases that of Mg or Si. PH value of hardened cement is mostly controlled by dissolvable Ca ion Moore concentration in the material system of cement-BBFS-HF. Alkali metal ions, which is introduced with additional materials, effect pH value more remarkably than the dissolvable Ca ion Moore concentration. PH value of hardened cement decreases a little if 50% cement is replaced by same weight of GBFS and HF. HF can reduce pH value more seriously than GBFS. DG enhances S and Ca ion Moore concentration, and decreases pH value of hardened cement.

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Periodical:

Advanced Materials Research (Volumes 261-263)

Pages:

270-274

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.261-263.270

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Online since:

May 2011

Authors:

Hong Bo Zhu, Pei Ming Wang, Ji Dong Zhang

Keywords:

Hardened Cement, Ion Concentration, Minerals, pH Value

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