Curing Concrete

Curing is one of those activities that every civil engineer and construction worker has heard of, but in reality does not worry about much. In practice, curing is often low on the list of priorities on the construction site, particularly when budgets and timelines are under pressure. Yet the increasing demands being placed on concrete mixtures also

Technical guidance for civil engineers and others interested in advanced technology issues regarding curing portland cement concrete pavement for streets and highways. Here is what is discussed: 1. INTRODUCTION 2. BLEEDING RATE—EVAPORATION RATE RELATIONSHIP 3. EFFECTIVENESS OF EVAPORATION REDUCERS 4. TIME OF CURING COMPOUND APPLICATION 5. WATER-RETENTION REQUIREMENTS FOR CURING COMPOUNDS 6. VARIABILITY IN TEST METHOD FOR WATER RETENTION OF CURING COMPOUNDS—ASTM C 156 7. APPLICATION RATE OF CURING COMPOUNDS 8. RECOVERY FROM POOR OR LATE APPLICATION OF CURING COMPOUND 9. EFFECT OF CLIMATIC CONDITIONS ON CURING COMPOUND DRYING TIME 10. APPLICATION OF CURING COMPOUND TO TINED SURFACES—EFFECT OF SAGGING 11. TEST METHODS FOR MEASURING CURING COMPOUND APPLICATION 12. LENGTH OF CURING 13. TEST METHODS FOR MEASURING CURING EFFECTIVENESS 14. THERMAL STRESS DUE TO EVAPORATIVE COOLING 15. CONCLUSIONS AND RECOMMENDATIONS.

Eleven compounds designated as colorless and two designated as water-based were evaluated to their suitability for curing of concrete and for their lack of color. All met present requirements for sprayability, drying time, and flash point. Only ten met the moisture- retention requirements. The three that failed the moisture test were one styrene- acrylate resin and both water-based compounds. Infrared analysis revealed that the colorless materials compounds. Infrared analysis revealed that the colorless materials represent 5 different chemical classes: 4 chlorinated rubbers; 2 modified styrene-butadienes; 1 phthalic alkyd; 3 carboxylated hydrocarbons; and 1 styrene- acrylate. Both water-based materials were identified as sodium silicate liquids. Infrared measurements were used to detect chemical and physical changes of the colorless materials when exposed to laboratory conditions and natural sunlight. (Author, modified-PL).

Introductory technical guidance for civil engineers and construction managers interested in internal curing of portland cement concrete pavement. Here is what is discussed: 1. INTRODUCTION 2. PAVEMENT APPLICATIONS 3. MIXTURE DESIGN FOR INTERNAL CURING 4. CONCRETE PAVEMENT CONSTRUCTION ASPECTS OF INTERNALLY CURED CONCRETE 5. PROPERTIES OF INTERNALLY CURED CONCRETE 6. PRACTICAL APPLICATIONS 7. SUMMARY 8. REFERENCES.

Introductory technical guidance for civil engineers, construction managers and construction inspectors interested in portland cement concrete paving for streets, highways, airfields and other applications. Here is what is discussed: 1. CONSOLIDATION 2. FINISHING, TEXTURING AND EDGING 3. CURING AND PAVEMENT PROTECTION.

This state-of-the-art volume covers the latest and future trends in measuring, monitoring and modeling the properties of cement based materials. The book contains 94 papers and presents the latest research work of renowned experts. It acts as a survey of the most up-to-date research in the field.

This text on building materials includes discussion of structural clay products, rocks and stones, wood, materials for making concrete, ferrous and non-ferrous metals, and miscellaneous materials.