2 edition of Alkali-silica reactivity in five dams in southwestern United States found in the catalog.
Alkali-silica reactivity in five dams in southwestern United States
by Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation, Available from NTIS in Denver, Colo, Springfield, Va
Written in English
|Statement||by David Stark.|
|Series||REC-ERC ; 85-10, REC-ERC (Series) -- 85-10.|
|Contributions||Engineering and Research Center (U.S.). Concrete and Structural Branch., Construction Technology Laboratories (Portland Cement Association)|
|The Physical Object|
|Pagination||iii, 64 p. :|
|Number of Pages||64|
Progress in the Evaluation of Alkali-Aggregate Reaction in Concrete Construction in the Pacific Northwest, United States and Canada By Fred H. Shrimer1 _____ 1Golder Associates, Vancouver, British Columbia, Canada. Introduction. This chapter is the third of a series dealing with chemical reactions of aggregates in concrete. The first version, enti-tled “Chemical Reactions,” was written by W. C. Hansen and included in ASTM STP A, published in It dealt with several types of chemical reactions known at the time to occur in concrete, including alkali-silica by:
Summary. Alkali-Aggregate Reaction in Concrete: A World Review is unique in providing authoritative and up to date expert information on the causes and effects of Alkali-Aggregate Reaction (AAR) in concrete structures a first edition entitled The Alkali-Silica Reaction in Concrete, edited by Professor Narayan Swamy, was published in a first attempt to cover this concrete. Buy Alkali/Silica Reaction in Concrete by D.W. Hobbs (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders.
ALKALI SILICA REACTIVITY ALKALI SILICA REACTIVITY JBASE (Structural) (OP) 14 Oct 14 We have an elevated tennis court, 6 years old, constructed of 2" metal deck with 4" total thickness of concrete. There is severe ASR finish damage. We want to resurface the concrete by removing +/-1 inch of concrete and replacing with a fully bonded. The Alkali-Silica Reaction in Concrete by R N Swamy (Editor) ISBN Format: Hardcover.
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Alkali-silica reactivity in five dams in southwestern United States. Denver, Colo.: Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S.
Dept. of the Interior, Bureau of Reclamation ; Springfield, Va.: Available from NTIS, . Title: Alkali-Silica Reaction in Five Dams in Southwestern United States Author(s): David Stark and G. De Puy Publication: Special Publication Volume: Issue: Appears on pages(s): Keywords: alkali-aggregate reactions; concrete cores; concrete dams; cracking (fracturing); humidity; moisture; petrography; silica; tests; siliceous aggregates; General.
Alkali-Silica Reactivity in Five Dams in Southwestern United States I July I 7. AUTHOR(S) 1 8. PERFORMING ORGANIZATION David Stark I REPORT NO. REC-ERC 9. PERFORMING ORGANIZATION NAME AND ADDRESS WORK UNIT NO. The alkali–silica reaction (ASR), more commonly known as "concrete cancer", is a swelling reaction that occurs over time in concrete between the highly alkaline cement paste and the reactive non-crystalline silica found in many common aggregates, given sufficient moisture.
This reaction causes the expansion of the altered aggregate by the formation of a soluble and viscous gel of sodium. Alkali-silica reactivity in five dams in southwestern United States [ - ] Stark, David.
Denver, Colo.: Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S.
Dept. of the Interior, Bureau of Reclamation ; Springfield, Va. Alkali-silica reactivity in five dams in southwestern United States / (Denver, Colo.: Concrete and Structural Branch, Division of Research and Laboratory Services, Engineering and Research Center, U.S.
Dept. of the Interior, Bureau of Reclamation Springfield, Va.: Available from National Technical Information Service, ), by D. Stark and. The Reference Center was developed to provide users with access to pertinent information related to alkali-silica reactivity (ASR). The Reference Center has been organized for quick and easy access to various resources, and will be updated regularly to ensure that the most up-to.
Stark, D. & Depuy, G. () Alkali-Silica Reaction in five dams in southwestern United States. In: Proceedings of the Katherine and Bryant Mather International Conference on Concrete Durability. Federal Highway Administration Video VH Alkali-Silica Testing, Alkali-Silica Reactivity Alkali-silica reactivity, a major cause of deterioration in concrete, is explained in the introduction.
Handbook For Identification of Alkali-Silica Reactivity In Airfield Pavements .pdf) Advisory Circular No. /, Federal Aviation Administration, U.S. Department of Transportation, February State-of-the-Art Report on Alkali-Aggregate Reactivity .pdf) American Concrete Institute, December concrete has been noted since the early s, primarily in the southwestern United States but also in Kansas, Nebraska, Al abama, and Georgia.
Studies of these failed concretes showed that the expansion was bec ause of a reaction between the alkali in the cement and the siliceous aggregates used in the concrete. Since then, many studiesFile Size: 37KB. The objective of this paper was to evaluate the alkali-silica reactivity (ASR) and alkali-carbonate reactivity (ACR) of the 14 aggregate groups quarried from different locations.
knowledge of all aspects of alkali-silica reactivity have been identified in Part II, Gaps in our Knowledge of Alkali-Silica Reactions in Concrete.
Sections 1, 6, 7, 8 and 9 of Part II were prepared by Richard Helmuth, sections 2 and 3 by David Stark, sections 4 and 5 by Sidney Diamond, and sections 9 and 10 by Micheline Moranville-Regourd. Handbook for the identification of alkali-silica reactivity in highway structures (Strategic Highway Research Program) [Stark, David] on *FREE* shipping on qualifying offers.
Handbook for the identification of alkali-silica reactivity in highway structures (Strategic Highway Research Program)Author: David Stark. The potential alkali-silica reactivity (ASR) of Lithuanian aggregates from five quarries was investigated using national chemical method, accelerated mortar bar test method RILEM AAR-2 (specimens 40×40× mm) and storage of specimens at 60 °C and % RH by: 1.
Alkali Silica reaction under the influence of chloride based deicers Purvi Desai Clemson University, Highways form the backbone of transportation in United States.
As a result, issues evaluation to assess effects of chloride deicers on alkali silica reactivity. Variations inCited by: 5. Alkali-Silica Reactivity Occurrences of ASR in the United States (From FHWA Showcase Workshop on ASR) ASR Occurrence Identified Uncertain SAFETEA-LU Legislation Sec.
(e) Demonstration Projects and Studies (3) Alkali Silica Reactivity. Of the funds made available by (a)(1) of this Act, $2, shall be made available by the. Alkali Silica Reaction - Proactive Avoidance. Use a low alkali cement. handbook for the identification of alkali-silica reactivity in highway structures This handbook is designed to help highway engineers and bridge inspectors spot and fix this very damaging and difficult-to-detect problem, namely, alkali-silica reactivity (ASR).
The alkali-silica reaction though not true is described as a concrete cancer. A human cancer, if untreated is terminal, whereas the alkali-silica reaction and the expansion it induces, if untreated, eventually stops.
No concreted structure or part of a concrete structure any where in the world has collapsed due to alkali-silica reaction alone. Alkali Silica Reaction (ASR) Potential of Sand and Gravels from NW-Himalayan Rivers and their Performance as Concrete Aggregate at Three Dams in Pakistan Chemistry of alkali-silica reaction and testing of aggregates, Cement and Concrete Composites 27(): Alkali Silica Reactivity in Concrete Rick Williams, P.G.
What Is ASR In Concrete? Alkali Silica Reactivity First discovered in California in the ’s Expansive gels form as alkaline fluids derived from the cement attack certain reactive siliceous aggregates.
One of the leading causes of premature concrete failure.Alkali-aggregate reactions can be either alkali-carbonate reactions (ACRs) or alkali-silica reactions (ASRs).
In ACR, the reaction is between the alkalies (sodium and potassium) and certain carbonate rocks, particularly calcitic dolomite and dolomitic limestones, present in some aggregates.
In ASR, the reaction is between alkalies and certain siliceous rocks or minerals, such as opaline chert.