File:The elastic properties of concrete under bi-axial loading (1912) (14594871307).jpg

Identifier: elasticpropertie00mill (find matches)
Title: The elastic properties of concrete under bi-axial loading
Year: 1912 (1910s)
Authors: Millard, Floyd Hays
Subjects: Concrete Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
II. liATERlALS, TEST PIECES AND APPARATUS. 4. Materials and Their Properties.-Cement The cement used was furnished by the Universal Portland Cemen t Co. Tes ts of samples talc en at times during the s eason v-ere made in the Cement Testing; Laboratory and are given in Table I. The tests were made by I.Ir. B. L. Bowling. Table I • BRIQUETTE TESTS OF CEl.ISiIT. Each value is the average from five oes ts. Lo ads are given in pounds per square inch. Sample Date Neat Cement 1-3 liortar llo. 7 Days 28 Days 7 Days ido ijays 1 Oct. 25, 1911 585 685 239 315 2 IIov. 11, 1911 577 694 225 297 »-> Dec. 7, 1911 691 715 242 306 4 Dec. 22, 1911 617 792 231 326 5 Jan. 10, 1912 588 672 246 6 Feb. 12, 1912 512 758 253 7 Feb. 20, 1912 698 884 287 372 Avers 624 743 246 325 Additional tests on this cemen* , showed the initial set to occur after 3-hr, S-min. and final set after 6-hr. 32-11 lin. Sieve tests sh07;ed 97.2 per cent passing a ITo . 100 sieve and SI.3 per cent passing a IJo. 200 sieve. 16
Text Appearing After Image:
17 Saiid. j-lie sand used vras torpedo sand Iron Attica, Indiana. It was of good quality, fairly sharp, clean and v/ell (graded as shown by the mechanical analysis given in Table II. It combinedcoarse with the^a£,i;recates used in a very satisf?.ctory manner. It wasfrom the same locality and of the same quality as the sandused in malcin^^ the concrete and reinforced concrete testspecimens for several years at he University of Illinois. Table II.IvECHAlIICAL A1>IALY3IS OF SAITD - 1912Average of 5 Samples Sieve ITo. SeparationSize,in. Per CentPassing 51012161830405074150 0.28.174.091.057 .043.027.019.013.009 1008854.347.541.732.921.2 •1 -T- 5.12.71.0 Stone. A good quality of rather hard limestone from KarJcalcee,Illinois, specified to pass through a 1-in. ring and over ascreen with l/4-in. meshes, was used. A mechanical analysisof the stone has been made and the results are shOYm in Table IIIThe stone is representative of the stone most used in buildingconstruction of reinforced c

Note About Images