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 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Creep and Drying Shrinkage of Lightweight and Normal weight Concretes by T W Reichard written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Creep and Shrinkage of High Performance Lightweight Concrete written by Mauricio Lopez and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This multi-scale investigation aimed to provide new knowledge and understanding of creep and shrinkage of high performance lightweight concrete (HPLC) by assessing prestress losses in HPLC prestressed members in a large-scale study; by quantifying the effect of the constituent materials and external conditions on creep and shrinkage in a medium-scale study; and by improving the fundamental understanding of creep and shrinkage in a small-scale study. Creep plus shrinkage prestress losses were between two and eight times lower than those estimated for the design standards and approximately 50% of those measured in similar strength normal weight high performance concrete girders. The lower creep and shrinkage exhibited by HPLC was found to be caused by a synergy between the pre-soaked lightweight aggregate and the low water-to-cementitious material ratio matrix. That is, the water contained in the lightweight aggregate contributes to enhance hydration by providing an internal moist curing. The water in the aggregate also contributes to maintain a high internal relative humidity which reduces or eliminates autogenous shrinkage. This higher internal relative humidity also reduces creep by preventing load-induced water migration. Finally, lightweight aggregate exhibits a better elastic compatibility with the paste than normal weight aggregate. This improved elastic matching and the enhanced hydration are believed to reduce peak deformations at the ITZ which further decreases creep and shrinkage.

Download or read book Shrinkage and Creep in Concrete 1966 1970 written by ACI Committee 209--Creep and Volume Changes in Concrete and published by . This book was released on 1972 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Creep and Shinkage in Lightweight Concrete written by Truman Jones (R.) and published by . This book was released on 1959 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lightweight Concrete written by Daniel P. Jenny and published by . This book was released on 1971 with total page 374 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 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 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 Designing for Effects of Creep Shrinkage Temperature in Concrete Structures written by and published by . This book was released on 1971 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Creep and Shrinkage in Concrete Structures written by Z. P. Bažant and published by John Wiley & Sons. This book was released on 1982 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 CEB FIP manual of lightweight aggregate concrete design and technology written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1977-01-01 with total page 170 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 Technical News Bulletin written by and published by . This book was released on 1964 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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: