MoDOT Application of Maturity Technology: Brief

Lemongelli, Patty; Amos, Dave

i

MoDOT Application of Maturity Technology: Brief

2003-07-01
By Lemongelli, Patty ; Amos, Dave

File Language:

English

Details

Creators:

Lemongelli, Patty ; Amos, Dave
Corporate Creators:

Missouri. Dept. of Transportation. Research, Development and Technology Division
Subject/TRT Terms:

Compressive Strength Fresh Concrete I32: Concrete I61: Equipment And Maintenance Methods Maintenance And Preservation Materials Nondestructive Tests Overpasses Reconstruction Repairing Temperature Thermocouples Time Highways
Publication/ Report Number:

Research Investigation 93-007
Resource Type:

Tech Report
Geographical Coverage:

United States;Missouri
Edition:

Brief
Corporate Publisher:

Missouri. Dept. of Transportation. Research, Development and Technology Division
Abstract:

When MoDOT repair crews were faced with emergency repair of a heavily damaged overpass on I-70 in December 2002, inspectors looked to the concrete maturity method to facilitate reconstruction operations of one of the structure’s northern bents, which was severely impacted in a tractor-trailer accident. The maturity method, a nondestructive means of estimating in-place concrete strength as a function of time and temperature, is recognized as a more reliable and timely method as opposed to testing conventional 6”x12” compressive strength cylinders. Following placement of the bent footings, columns and cap on the I-70 overpass, thermocouples were inserted in the fresh concrete and a maturity value was calculated at desired times. In-place strength was then estimated from a pre-established relationship between maturity values and compressive strength. Application of the maturity method allowed earlier form removal and completion of the I-70 bridge repairs than if concrete cylinders had been used for strength determination. As a result, the bridge was open to traffic several days earlier than anticipated had conventional methods been used.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:37cdfb8d2ad3fab761a5e5928277ae2589c7794004de8a478e0468c245651cd74f0eba46032bfcad0f6a6b454806ab93c3a8283a71b1215987e9d5a09bb66cba
Download URL:

https://rosap.ntl.bts.gov/view/dot/39071/dot_39071_DS1.pdf
File Type:

[PDF - 1.86 MB ]

File Language:

English

ON THIS PAGE

Details

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.