Properties of concrete at early ages

  • 204 Pages
  • 1.33 MB
  • English

American Concrete Institute , Detroit, Mich. (P.O. Box 19150, Redford Sta., Detroit 48219)
Concrete -- Curing -- Congre
Other titlesConcrete at early ages.
StatementJ. Francis Young, editor.
SeriesSP ;, 95, Publication SP ;, 95.
ContributionsYoung, J. Francis., American Concrete Institute.
LC ClassificationsTA439 .P874 1986
The Physical Object
Paginationv, 204 p. :
ID Numbers
Open LibraryOL2748580M
LC Control Number86082051

Description Properties of concrete at early ages EPUB

Genre/Form: Conference papers and proceedings Congresses: Additional Physical Format: Online version: Properties of concrete at early ages. Detroit, Mich.

(P.O. Box    - Buy Properties of Concrete at Early Ages (Publication, Sp) book online at best prices in India on Read Properties of Concrete at Early Ages (Publication, Sp) book reviews & author details and more at Free delivery on qualified :// Early-age properties of concrete: Overview of fundamental concepts and state-of-the art research Article (PDF Available) in Construction Materials (2) April with 6, Reads Early age history of concrete is crucial to determining how durable that concrete will be.

Knowledge of the environmental effects on concrete at early ages is needed to predict concrete deflections and crack resistance. Provides information needed on properties of concrete at early ages for the engineer to ensure safe construction :// Hansen P. G.— Physical properties of concrete at early of Mines and Metallurgy of the University of Missouri, What should be done to improve our understanding and appreciation of the properties of concrete at early ages.

This question was the basis for an Engineering Foundation Conference on the topic of “The Properties of Concrete at Early Ages.” To answer the above question, the conference participants developed the recommendations summarized in   Properties of concrete at early ages / J.

Francis Young, editor 資料種別: 図書 出版情報: Detroit, Mich. (P.O. BoxRedford Sta., Detroit Title: Mechanical Properties of Concrete at Early Ages Author(s): H. Lew and T. Reichard Publication: Journal Proceedings Volume: 75 Issue: 10 Appears on pages(s): Keywords: age;age-strength relation;bond (concrete to reinforcement);compressive strength; concretes; mechanical properties;modulus of elasticity; pullout tests;splitting tensile strength; statistical analysis; ://?m.

The relations between evaporation of water, shrinkage, cracking at early ages and properties of concrete are discussed on the basis of the experimental results. View. Show :// /_Tensile_properties_of_early-age_concrete. Fundamental tensile properties of concrete at very early ages are presented.

Abstract Proper knowledge of tensile properties of concrete from very early ages is essential for effective control of not only early-age cracking but also of residual stress due to restrained early-age deformation as well as for demolding and handling of young   1.

Introduction. Concrete properties such as strength, elastic modulus, shrinkage, and creep are influenced by age, temperature, humidity, and loading history.This effect is especially noticeable at early ages during which the hydration reaction rapidly ://   This study, entitled "Properties of Air-Entrained Concrete at Early Ages" concerns a group of tests designed to provide quantitative information regarding the effect of entrained air on the strength and durability of concrete before it reaches its 28 day strength.

?article=&context=masters_theses. Our knowledge of the properties of concrete till the end of exponential strenght-development is not satisfactory. Within the RILEM COMMITTEE CEA-concrete at early ages a collection of different test methods was made as a basis of former testing.

After a short description an analysis shows the advantages of the different :// Properties of concrete at early ages J. Francis Young, editor (ACI publication, SP) American Concrete Institute, Early Ages P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials Significance The first 48 hours are very important for the performance of the concrete structure.

It controls the long-term behavior, influence fc, Ec, creep, and :// Properties of Concrete at Early Ages FRANCIS A. 0LUOKUN, EDWIN G. BURDETTE, AND J. HAROLD DEATHERAGE An investigation on the gain of physical properties of concrete with time and experimental results on the development of com­ pressive strength, splitting tensile strength, modulus of elasticity, and Poisson's ratio are   Compressive Strength of Concrete Hardened Concrete -1 mar [email protected] +91 It is commonly accepted that high curing temperature (near 60°C or above) results in reduced mechanical properties and durability of concrete compared to normal curing temperature.

The internal temperature of concrete structures at early ages is not so high as 60°C in many circumstances. In this paper, concretes were cured at 45°C at early ages and their late-age properties were ://   KΙc at early ages. There existed a close relationship between s KΙc and porosity.

In addition, the interfaces between coarse aggregate and cement matrix were studied by scanning electron microscopy (SEM) at the age of 28 days to interpret its influence to mechanical properties. Keywords: compressive strength; fracture toughness; concrete Properties of Concrete at Early Ages offers the information needed on properties of concrete at early ages for the engineer to ensure safe construction practices.

Various topics presented include: field control and monitoring of concrete strength gain, the early-age behavior of reinforced concrete members, and mechanical properties in young   The long-term performance of concrete structures is affected to a large extent by the properties and behaviour of concrete at early age.

However, the fundamental mechanisms affecting the early-age behaviour of concrete have not yet been fully :// Book Description. Restraint and intrinsic stresses in concrete at early ages are vitally important for concrete structures which must remain free of water-permeable cracks, such as water-retaining structures, tunnel linings, locks and :// Mechanical properties of concrete at early ages.

By Jianwei. Zhao. Abstract. Modern construction techniques enable reinforced concrete structures to be constructed in a very short time. The loads occurring due to the construction process on the partially completed structure can be larger than the design service load.

The available strength of [et al.] -- Thermal cracking in wall of prestressed concrete egg-shaped digester \/ T. Yoshioka, S. Ohtani, R. Sato -- Study of external restraint of mass concrete \/ M. Ishikawa, T.

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Tanabe -- The effect of slag on thermal cracking in concrete \/ M.D.A. Thomas, P.K. Mukherjee -- Minimization of thermal cracking in concrete members at early ages Characterization of concrete properties at early ages: Case studies of the University of Minho.

By Miguel Azenha and José Luís Duarte Granja. Publisher: ENS Cachan - RILEM. Year: OAI identifier: oai: Provided by: Universidade do The mechanical properties of concrete at early ages are very important for the safety during the construction order to assure the construction safety of recycled aggregate concrete,the mechanical properties at early ages were investigated,including the compressive strength,the tensile splitting strength,the modulus of elasticity and the the test,three strength grades,i.e Influence of concrete constituents, mix proportions and temperature on crack sensitivity of concrete - R Springenschmid and R Breitenbucher.

Temperature development in situ - K van Breugel. Development of mechanical behaviour at early ages including mathematical models - M Emborg.

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Restraining conditions - F S Rostasy and T :// [2] M. Azenha, J. Granja and R. Oliveira, Innovative method for continuous monitoring of concrete viscoelastic properties since early ages: concept and pilot experiments, Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete and Concrete Structures, Vienna, Austria ().

DOI: /   Concrete has various properties which have to be examined for its successful working and efficient operation. Properties of Concrete by A.M.

Nevile In this post I am going to share with you a very well known and renowned book titled “Properties of Concrete” by “” it is text book in various civil engineering institutions taught Late-Age Properties of Concrete with Different Binders Cured under 45°C at Early Ages Table 1 Results of late-age properties of concrete cured at high ://.

Prediction of elastic properties of cement pastes at early ages Lavinia Stefana,b,*, Farid Benboudjemaa, tia,c, Benoît Bissonnetteb a ENS Cachan/CNRS UMR/UPMC/PRES UniverSud Paris, 61 Avenue du Président Wilson, Cachan Cedex, France bCRIB, Université Laval, Québec, Canada G1V 0A6 cLCPC, Paris, 58 Boulevard Lefebvre, than that of PC concrete, although the ultimate strength is higher for the same water-to-binder ratio (Barnett et al.

). So far, lots of researches have been conducted on PFA and GGBS concrete. However, there is little research on engineering properties of PFA and GGBS systems at early ages. Generally it is regarded that during this pe-Knowledge of the elastic properties of concrete at early ages is highly useful for designers, especially from a serviceability standpoint.

This paper discusses the determination at early ages of elastic properties of 3 concretes with water-cementitious materials ratios of, and