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INFLUENCE OF MATURITY FOR CONCRETE CONTAINING DIFFERENT CEMENT TYPES ON MECHANICAL AND DURABILITY PROPERTIES

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Last updated: 05 Jan 2025

Subjects

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Tags

Concrete maturity
Strength
Temperature
mechanical properties
durability
INFLUENCE OF MATURITY FOR CONCRETE CONTAINING DIFFERENT CEMENT TYPES ON MECHANICAL AND DURABILITY PROPERTIES
ICASGE'23

Abstract

The maturity method utilizes the principle that directly relates the strength of concrete to the cumulative temperature history. This principle can be used to estimate the strength of concrete during construction for administering timing of job control functions such as removal of formwork and restoring, post-tensioning of tendons, termination of cold weather protection and opening of the roadways to traffic based on the maturity index. This practice can be used to estimate strength of laboratory specimens cured under nonstandard temperature conditions. This investigation is directed to study the influence of time- temperature history on the mechanical as well as the durability properties of concrete mixes containing three different cement types with different cement contents. Ordinary Portland Cement (OPC), Sulfate Resistant Cement (SRC) and High Slag Cement (HSC) were used with different cement contents (300, 350 and 400 kg/m3) at curing temperatures of (10, 30 and 50 ºC). Compressive, splitting tensile and bond strengths were the evaluated mechanical properties. On the other hand, water penetrations as well as accelerated corrosion tests were conducted to evaluate to the durability properties. The results showed that for achieving high early strength curing at high temperature levels is essential. Whereas, for achieving higher strength at later ages, curing at relatively low temperature levels is recommended. Moreover, the durability performances evaluated by water penetration resistance as well as accelerated corrosion tests are being maturity as well as cement type and content dependent. HSC showed the best performance in corrosion resistance followed by OPC. SRC showed the weakest corrosion resistance among the tested cements. Also, the corrosion resistance is curing temperature dependent as 10 ºC showed the best resistance followed by mixes cured at 30 ºC and lastly 50 ºC.

Keywords

Concrete maturity, Strength, Temperature, mechanical properties, durability

Authors

First Name

Metwally

Last Name

Abd Allah Abd Elaty

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Orcid

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First Name

Mariam

Last Name

Farouk Ghazy

Affiliation

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Email

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Orcid

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First Name

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Last Name

Mohamed Farh Ghannam

Affiliation

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Orcid

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Volume

ICASGE2017

Issue Date

1 Jan 2017

Publish Date

29 May 2022

Link

https://icasge.conferences.ekb.eg/article_1455.html

Order

184

Publication Type

Conference

Publication Title

ICASGE'23

Publication Link

https://icasge.conferences.ekb.eg/

Details

Type

Article

Locale

en

Created At

13 Dec 2022