An Introduction to Advanced Issues in Curing Portland Cement Concrete Pavement

An Introduction to Advanced Issues in Curing Portland Cement Concrete Pavement

Author: J. Paul Guyer, P.E., R.A.

Publisher: Guyer Partners

Published: 2020-12-24

Total Pages: 73

ISBN-13:

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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.


Design and Control of Concrete Mixtures

Design and Control of Concrete Mixtures

Author: Steven H. Kosmatka

Publisher:

Published: 1988

Total Pages: 224

ISBN-13:

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Portland Cement Association reference, dealing with fundamentals, cold weather concreting, curing, admixtures, aggregates, mixing, and much more.


Regeneration of the Built Environment from a Circular Economy Perspective

Regeneration of the Built Environment from a Circular Economy Perspective

Author: Stefano Della Torre

Publisher: Springer Nature

Published: 2019-12-30

Total Pages: 380

ISBN-13: 303033256X

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This open access book explores the strategic importance and advantages of adopting multidisciplinary and multiscalar approaches of inquiry and intervention with respect to the built environment, based on principles of sustainability and circular economy strategies. A series of key challenges are considered in depth from a multidisciplinary perspective, spanning engineering, architecture, and regional and urban economics. These challenges include strategies to relaunch socioeconomic development through regenerative processes, the regeneration of urban spaces from the perspective of resilience, the development and deployment of innovative products and processes in the construction sector in order to comply more fully with the principles of sustainability and circularity, and the development of multiscale approaches to enhance the performance of both the existing building stock and new buildings. The book offers a rich selection of conceptual, empirical, methodological, technical, and case study/project-based research. It will be of value for all who have an interest in regeneration of the built environment from a circular economy perspective.


Application of Super Absorbent Polymers (SAP) in Concrete Construction

Application of Super Absorbent Polymers (SAP) in Concrete Construction

Author: Viktor Mechtcherine

Publisher: Springer Science & Business Media

Published: 2012-01-03

Total Pages: 170

ISBN-13: 9400727321

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This is the state-of-the-art report prepared by the RILEM TC “Application of Super Absorbent Polymers (SAP) in concrete construction”. It gives a comprehensive overview of the properties of SAP, specific water absorption and desorption behaviour of SAP in fresh and hardening concrete, effects of the SAP addition on rheological properties of fresh concrete, changes of cement paste microstructure and mechanical properties of concrete. Furthermore, the key advantages of using SAP are described in detail: the ability of this material to act as an internal curing agent to mitigate autogenous shrinkage of high-performance concrete, the possibility to use SAP as an alternative to air-entrainment agents in order to increase the frost resistance of concrete, and finally, the benefit of steering the rheology of fresh cement-based materials. The final chapter describes the first existing and numerous prospective applications for this new concrete additive.


Guide to Cement-treated Base (CTB)

Guide to Cement-treated Base (CTB)

Author: Gregory E. Halsted

Publisher:

Published: 2006

Total Pages: 20

ISBN-13: 9780893122539

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Cement-treated base (CTB) is a general term that applies to an mixture of native soils and/or manufactured aggregates with measured amounts of portland cement and water that is compacted and cured to form a strong, durable, frost resistant paving material. Other descriptions such as soil-cement base, cement-treated aggregate base, cement-stabilized base are sometimes used. This document provides a basic guide on the use of cement-treated base (CTB) for pavement applications. This document provides on overview on the design and construction of CTB for both mixed-in-place and central plant mixed operations. A suggested construction specification is also included.