Research Activities: 2012

Using Shear Wave Velocity to Monitor the Curing Process of High Performance Flowable Concrete
 
 Status Complete                  View Final Report: PDF
 
Sequential Number R339
 
Identification Number 00042503
   
Matching Research Agency

Missouri University of Science & Technology
 
Principal Investigator

Bate Bate
Assistant Professor
Missouri University of Science and Technology
1401 North Pine
Rolla, MO 65409
(573) 341-4465
bate@mst.edu
 
Student Involvement

One graduate student
 

Project Objective		 The first objective of this proposal is to use bender element as a new monitoring tool to monitor the curing process of a concrete. The second objective of this proposal is to use S-wave velocity as a tool to predict the strength of the early (1 or 3 days) strength of a freshly-casted concrete.
 

Project Abstract		 Shear wave velocity measurement of geomaterials using bender element has been used widely in geotechnical engineering during the last decades. The shear wave velocity, or the stiffness of a freshly casted concrete will also change significantly from close to zero to 1300- 2000 mjs. However, monitoring of the lateral pressure, instead of S-wave velocity, was currently adopted as the standard method. The first objective of this proposal is to use bender element as a new monitoring tool to monitor the curing process of a concrete. The second objective of this proposal is to use S-wave velocity as a tool to predict the strength of the early (1 or 3 days) strength of a freshly-casted concrete using correlation between these two quantities.
 

Relationship to other Research/Projects

This is an independent project. However, it has potential to secure external funding at federal and state level.
   

Transportation-Related Keywords

 Concrete, monitoring of curing process, early strength of concrete, stiffness
   

Technology Transfer Activities

Journal publication, presentation at top-tier national and international conferences, web seminars, and short courses.
A workshop will be held to teach engineers from the industry the method of bender element.
   

Project Deliverables

 1 - 2 journal papers
A joint proposal submitted to national department of transportation or national institute of standard and technology (NIST) by the Pis.
   

Anticipated Benefits

• Propose a new standard method in the monitoring of the curing process of fresh concrete;
• Provide information on the early strength of a freshly-casted concrete;
• Has the potential of monitoring the curing process of the field concrete structure, such as bridges, bored piles, and high-rise buildings.

Milestones
Project Start Date: 05/15/2013
Project End Date:

12/31/2013