ASTM C469 - Record traverse strain =-∈ E S2 S1 2 0 000050...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression ASTM C-469 Tim Boyer CM 442 Pre-Lab Purpose The purpose of this test is to provide a standardized method of determining the stress to strain ratio value and the ratio of lateral to longitudinal strain for hardened concrete. Equipment Testing Machine Compressometer Extensometer Molded Cylindrical Specimens Drilled core specimens Procedure Maintain ambient temp Place specimen in testing machine, aligning axis with center of thrust Load specimen at least twice; use first loading to seat gages
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Record traverse strain =-∈ - . E S2 S1 2 0 000050 =∈-∈ ∈ - . μ t2 t1 2 0 000050 Post-Lab Test Conditions The test conditions for this procedure were normal. Results Long. Strain (in) Load (lbs) Stress (psi) 0.0008 4810 155.1 0.0018 10700 345.0 0.0028 17200 554.5 0.0038 23200 747.9 0.0048 29200 941.4 0.0058 34900 1125.1 0.0068 42200 1360.5 0.0072 44700 1441.1 E=3215034.5 Comments The procedure was followed as written and everything proceeded normally....
View Full Document

This note was uploaded on 04/29/2008 for the course CE 320 taught by Professor Mckinney during the Spring '08 term at Rose-Hulman.

Page1 / 2

ASTM C469 - Record traverse strain =-∈ E S2 S1 2 0 000050...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online