Sulfate impurities from deicing salt and durability of Portland cement mortar

Technical Report · Mon Jun 01 00:00:00 EDT 1987

OSTI ID:6360292

Schluter, M C

This thesis reports research on the effects of calcium sulfate in halite on Portland cement durability. Much has been published about sulfate ions causing expansion reactions in Portland cement concrete, on scaling caused by sodium chloride, and the participation of magnesium sulfate in seawater attack. However, little work has been done on the influence of sodium chloride and calcium sulfate solutions as they are found combined in natural halite. Durability studies were conducted using brines containing different amounts of gypsum as an impurity. Damage mechanisms, reaction products and pore structure changes were evaluated. 16 refs., 27 figs., 7 tabs.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6360292
• Report Number(s): IS-T-1312; ON: DE89007622
• Resource Relation: Other Information: Thesis (Ph.D.). Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRINES
CORROSIVE EFFECTS
HALITE
PORTLAND CEMENT
PHYSICAL PROPERTIES
CALCIUM HYDROXIDES
CHEMICAL COMPOSITION
FLY ASH
GYPSUM
KANSAS
PAVEMENTS
POROSITY
SOLUBILITY
SULFUR TRIOXIDE
X-RAY DIFFRACTION
AEROSOL WASTES
ALKALINE EARTH METAL COMPOUNDS
ASHES
BUILDING MATERIALS
CALCIUM COMPOUNDS
CALCIUM SULFATES
CEMENTS
CHALCOGENIDES
COHERENT SCATTERING
DIFFRACTION
FEDERAL REGION VII
HALIDE MINERALS
HYDROGEN COMPOUNDS
HYDROXIDES
MATERIALS
MINERALS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
RESIDUES
SCATTERING
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
SULFUR OXIDES
USA
WASTES
360604* - Materials- Corrosion
Erosion
& Degradation
360602 - Other Materials- Structure & Phase Studies