Experimental Investigation of the Chemical Shrinkage of the Cement Paste Based on the Calorimetric and Ultrasonic Measurement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU133534" target="_blank" >RIV/00216305:26110/19:PU133534 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Experimental Investigation of the Chemical Shrinkage of the Cement Paste Based on the Calorimetric and Ultrasonic Measurement

Original language description

The paper deals with the experimental investigation of the chemical shrinkage of hydraulic cement paste. The measurements were aimed at the determination of heat flow and hydration heat using the isothermal calorimetry and determination of the ultrasonic (US) pulse velocity using the test device based on the longitudinal waves measurement and equipped with the thermal sensor. The measurements were performed on the test specimens prepared from Portland cement CEM I 42.5R and water with w/c ratio of 0.40, 0.33 and 0.50. The chemical shrinkage was determined in compliance with the ASTM C1608-17. The main objective of the experiments was to find the relationships between the results obtained using the above mentioned testing techniques. The pilot results show the close relationship between the heat flow, evolution of the internal temperature measured inside the test specimen and US transit time determined by the continual measurement on the test specimen during early maturation. The results also indicate that the prediction of chemical shrinkage based on the US pulse velocity corresponds very closely with the experimental data. The results of performed measurements will be used for the specification of the correction factors in the shrinkage prediction models.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA17-14302S" target="_blank" >GA17-14302S: Experimental analysis of the early-age volume changes in cement-based composites</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

FIB 2018 - Proceedings for the 2018 fib Congress: Better, Smarter, Stronger

ISBN

978-1-877040-15-3

ISSN

2617-4820

e-ISSN

—

Number of pages

8

Pages from-to

2482-2489

Publisher name

Federation Internationale du Beton (fib)

Place of publication

neuveden

Event location

Melbourne

Event date

Oct 7, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—