Studies on the binder of fly ash-fluorgypsum-cement

Journal Article · Wed Dec 31 23:00:00 EST 1997 · Cement and Concrete Research

DOI:https://doi.org/10.1016/S0008-8846(97)00247-0· OSTI ID:600057

Yan, P; You, Y ^[1]

---

1. Tsinghua Univ., Beijing (China). Dept. of Civil Engineering

A new binder with high strength, good volume stability, and excellent water resistance has been developed using fly ash and fluorgypsum as main raw materials, as well as Portland cement as stimulator. The hydration process and microstructure of the binder were investigated with X-ray diffraction and scanning electron microscopy. The continuously pozzolanic reaction of fly ash, the transformation of anhydrite into gypsum, in appropriate quantity, and the homogeneous mixing of CSH gel, gypsum microcrystal, and the remaining anhydrite results in the formation of a dense paste structure, and consequently the good properties of the binder.

• OSTI ID: 600057
• Journal Information: Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 1 Vol. 28; ISSN CCNRAI; ISSN 0008-8846
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
BINDERS
CORROSION RESISTANCE
FLUORINE COMPOUNDS
FLY ASH
GYPSUM
HYDRATION
MATERIAL SUBSTITUTION
MICROSTRUCTURE
PORTLAND CEMENT
WASTE PRODUCT UTILIZATION
WATER