Download or read book A New Method for Testing Reinforced Concrete Slabs written by Conrad Arthur Ecklund and published by Palala Press. This book was released on 2018-03-03 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book A New Method for Testing Reinforced Concrete Slabs written by Conrad Arthur Ecklund and published by Forgotten Books. This book was released on 2017-12-14 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A New Method for Testing Reinforced Concrete Slabs: A Thesis The object of this thesis is primarily to show the adaptibility of a hydraulic machine for the testing of slabs. It is believed that the machine used and described in the following pages removes the undesirable conditions mentioned above, and because of its cheapness, simplicity and ease of manipulation may be of some value. The number of slabs tested was restricted by the size of the room available for making, storing and testing the specimens, and by the time required to design the apparatus, make the slabs and perform the experiment. It being undesirable to install a crane or hoist, the size of the slabs was determined by the weight that could be readily moved and lifted with crow - bars and levers Accordingly, only a few slabs have been tested and insufficient data is at hand for a proper comparison and conclusion. It is hoped that the difficulties encountered in the conduct of the test and discussed in the following pages, may be of some service. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book NBS Monograph written by United States. National Bureau of Standards and published by . This book was released on 1962 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Nondestructive Methods for Measurement of Slab Thickness and Modulus of Rupture in Concrete Pavements written by John S. Popovics and published by . This book was released on 2005 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes work to develop non-destructive testing methods for concrete pavements. Two methods, for pavement thickness and in-place strength estimation, respectively, were developed and evaluated. The thickness estimation method is based on a new hybrid approach that combines frequency domain (impact-echo) and time domain (seismic) data. This new method makes use of a fuller understanding of the dynamic wave phenomenon, which was developed during the course of the work. The effects of material property gradients (due to aggregate segregation and moisture variation) through the slab thickness are compensated for in the method. A field testing method is proposed, described, and experimentally verified. Verification tests carried out on full-scale concrete slabs cast on granular base show that the new method provides more accurate thickness estimates than those obtained by the standard impact-echo procedure. On average, the error between predicted thickness and actual thickness determined by cores is less than 6 mm, although some individual estimates exceed this error value. However, the new method does not work on concrete over asphalt or cement-treated base (which accounts for most concrete pavements) or on full-depth asphalt concrete pavements. The in-place strength estimation method is based on ultrasonic surface wave measurements. A field test method is proposed, described, and experimentally verified. Verification tests carried out on a range of concrete mixtures with varying aggregate type and cementitious material, all of which satisfy the requirements of "A3" concrete as specified by the Virginia Department of Transportation. Two data analysis procedures are proposed. One procedure predicts flexural strength within 50 psi of actual strength determined by direct strength measurement of beams, although the procedure requires 1-day strength and ultrasonic values to be known. The second procedure is more flexible but provides strength estimates with lower accuracy. Field tests, which were carried out at two pavement sites in Virginia, are reported for both methods. Finally, a detailed description of the required testing equipment and experimental and analytical procedures for both methods are included in the Appendix. Cost savings from implementing the methods are not obvious, since the methods cannot be used to measure the thickness of most concrete pavements for acceptance and payment. The methods can be used to nondestructively evaluate the modulus of rupture of pavements for analysis purposes, but savings would depend on the nature of the analysis.
Download or read book Technologic Papers of the Bureau of Standards written by United States. Bureau of Standards and published by . This book was released on 1924 with total page 842 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reinforced Concrete Slabs written by Robert Park and published by John Wiley & Sons. This book was released on 1999-12-28 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unter "bewehrtem Beton" versteht man eine Kombination von Beton mit anderen, verstärkenden Materialien (meist Stahl). Aus Stahlbetonplatten werden nicht nur Häuser gebaut, sondern auch Straßen und Mauern. Bauingenieure müssen die Merkmale und Einsatzfelder dieser Werkstoffe kennen und Belastungsgrenzen abschätzen. Dieses Buch, das einzige seiner Art, dient Praktikern und Studenten der Bautechnik als kompetenter Begleiter. (01/00)
Download or read book Comparison of Different Methods of Conducting Punching Tests on Reinforced Concrete Slabs Subjected to Combined Loading written by John Sinclair Frellick and published by 1971 [c1972]. This book was released on 1971 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Engineering Digest written by Harwood Frost and published by . This book was released on 1909 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each number includes section: The technical press index.
Download or read book In Situ nondestructive Testing of Concrete written by V. M. Malhotra and published by . This book was released on 1984 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supplementary List of Publications of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1924 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Building Age written by and published by . This book was released on 1909 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Industrial Engineering and the Engineering Digest written by and published by . This book was released on 1909 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications written by United States. National Bureau of Standards and published by . This book was released on 1925 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Testing of a Blast resistant Reinforced Concrete Slab System written by Marvin E. Criswell and published by . This book was released on 1972 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of the investigation were to design and model test a blast-resistant reinforced concrete slab system serving as the roof of a basement shelter area. The slab system was designed to offer sufficient radiation and blast protection to insure a survival probability for its occupants of 85 to 95 percent for a fa 15-psi airblast overpressure loading. Static and dynamic tests were conducted on two 1/4-scale models of a prototype shelter. The prototype shelter, as designed, has a reinforced concrete flat slab roof consisting of three 18-foot spans in each direction supported by four interior columns and by a continuous wall around the perimeter. The model included the perimeter walls and different panel configurations which would influence the load-carrying capacity of the prototype structure. The slab system was designed using the empirical method of the 1963 American Concrete Institute Code with modifications to account for the dynamic loading effects. (Author).
Download or read book Concrete and Constructional Engineering written by and published by . This book was released on 1925 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book List of Publications of the Department of Commerce Available for Distribution written by United States. Dept. of Commerce and published by . This book was released on 1923 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
