Download or read book Creep and Drying Shrinkage of Lightweight and Normal weight Concretes written by Thomas W. Reichard and published by . This book was released on 1964 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description is given of a series of tests and test results from an investigation of the mechanical properties of structural-grade lightweight and normal-weight concretes. The major part of the work was planned to obtain comparative values of compressive creep, drying shrinkage, strengths, and moduli of elasticity for concretes made with 24 lightweight and 5 natural, normal-weight aggregates and having the same nominal strength at the time the specimens were placed under load. Data are presented from a total of 76 different concretes which show that there is a wide range in values of the mechanical properties of concretes of the same nominal compressive strength. It is shown that relatively high values of creep and drying shrinkage are not always associated with lightweight concretes and that, in fact, some lightweight concretes have practically the same mechanical properties as some normal-weight concretes. In addition to environmental conditions, the two major factors affecting the creep of concrete appear to be the ratio of the applied stress to the strength at the time of loading, and the aggregate used. Curing conditions, type of cement, mix proportions, and several other variables appear to affect the creep chiefly insofar as they affect the stress-strength ratio. It was observed that the creep at the age of two years can be estimated from the 90-day results with reasonable accuracy. (Author).

Download or read book Lightweight Aggregate Concrete written by Satish Chandra and published by Elsevier. This book was released on 2002-10-28 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: In spite of the increasing use and demand for lightweight aggregate concrete (LWAC), there is still a lack of adequate explanations to understand the mechanisms responsible for the strength and durability properties of LWAC. This book is written to give an overall picture of LWAC, from the historical background, aggregate production, proportioning and production of concrete, to applications in structures. Physical properties and chemical durability are described in detail. The physical properties include density, strength, shrinkage, and elasticity. Chemical durability includes resistance to acids, chloride ingress, carbonation, and freeze-thaw resistance. Fire resistance is also included, which is seldom considered, but is a very important aspect of the safety of the structure. Microstructure development and its relation to the durability properties of LWAC generally are not highlighted in the literature. The development of bonds, the microstructure with different binder systems, and different types of lightweight aggregates are explained. They show how lightweight aggregate concrete differs from normal weight concrete. The chapters on chloride ingress and freeze-thaw resistance are detailed because of the use of LWAC in offshore construction. The economical aspects of using LWAC are also reviewed. Emphasis is placed on the fact that although the cost of LWAC is high, the total cost of construction has to be considered, including the cost of transport, reinforcement, etc. When these are considered then LWAC becomes cheaper and attractive. The life cycle cost of the concrete is another consideration for calculating long-term savings on maintenance costs.

Download or read book Specifications for Structural Concrete ACI 301 05 with Selected ACI References written by American Concrete Institute and published by American Concrete Institute. This book was released on 2005 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Creep Shrinkage and Durability Mechanics of Concrete and Concrete Structures Two Volume Set written by Tada-aki Tanabe and published by CRC Press. This book was released on 2008-09-01 with total page 1552 pages. Available in PDF, EPUB and Kindle. Book excerpt: CREEP, SHRINKAGE AND DURABILITY MECHANICS OF CONCRETE AND CONCRETE STRUCTURES contains the keynote lectures, technical reports and contributed papers presented at the Eighth International Conference on Creep, Shrinkage and Durability of Concrete and Concrete Structures (CONCREEP8, Ise-shima, Japan, 30 September - 2 October 2008). The topics covered

Download or read book Technical News Bulletin of the National Bureau of Standards written by and published by . This book was released on 1963 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dimensions written by and published by . This book was released on 1963 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Monograph written by and published by . This book was released on 1959 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical News Bulletin written by and published by . This book was released on 1964 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Structural Lightweight Aggregate Concrete written by Dr J L Clarke and published by CRC Press. This book was released on 2002-11-01 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lightweight aggregate concrete is undergoing something of a renaissance. Although this material has been available for many years, only now is it being used more widely. This book provides a comprehensive review of this growing field from an international perspective.

Download or read book Technical News Bulletin written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Curves of Input Impedance Change Due to Ground for Dipole Antennas written by Lewis E. Vogler and published by . This book was released on 1964 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Graphs of the change in input impedance of electrically short dipole antennas in the presence of an isotropic and homogeneous ground are presented, considering four types of antennas: horizontal and vertical, electric and magnetic dipoles.Curves of the change in both the input resistance and reactance are shown for a wide range of values of the frequency, antenna height above the ground, and electromagnetic ground constants.(Author).

Download or read book Designers Guide to EN 1992 2 Eurocode 2 Design of Concrete Structures Part 2 Concrete Bridges written by Chris R Hendy and published by Thomas Telford. This book was released on 2007-01-08 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation - Basis of design - Materials - Durability - Structural analysis - Ultimate limit states - Serviceability limit states - Detailing of reinforcement and prestressing tendons - Detailing for members and particular rules - Additional rules for precast concrete structures - Design for the execution stages.

Download or read book Building Science Series written by United States. National Bureau of Standards and published by . This book was released on 1970 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1st fib Congress in Osaka Japan Vol2 written by FIB – International Federation for Structural Concrete and published by FIB - Féd. Int. du Béton. This book was released on 2002-01-01 with total page 751 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Significance of Tests and Properties of Concrete and Concrete making Materials written by Paul Klieger and published by ASTM International. This book was released on 1994 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1961 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt: