Results 51 to 60 of about 1,779 (119)

A Study On the Chemical shrinkage and Autogenous Shrinkage of High strength Concrete

open access: yesJournal of the Korean Institute of Building Construction, 2004
The purpose of this study is to investigate the chemical shrinkage and autogenous shrinkage of high strength cement paste and silica fume and fly ash and sand to cement ratio by the method of volumetric tests, and also investigate the autogenous shrinkage of high measurement method, and compare the results of volumetric test and linear length ...
openaire   +2 more sources

Shrinkage of High-Performance Concrete

open access: yes, 1999
This paper outlines an experimental and numerical study on the effect of w/c, silica fume and age on shrinkage of High-Performance Concrete (HPC). Cylinders of 8 types of HPC were cast. Carbonation and water-losses were studied parallel.
Persson, Bertil,, Lund University.
core  

Very early age autogenous shrinkage: Governed by chemical shrinkage or self-desiccation?

open access: yes, 2002
Autogenous shrinkage is often fully attributed to self-desiccation, or the lowering of internal relative humidity with age. Research at VTT has shown that autogenous shrinkage can still occur even if the humidity is at 100%, immediately after casting ...
Holt, Erika; id_orcid
core   +1 more source

Avaliação da retração e da fissuração em revestimento de argamassa na fase plástica [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2011O objetivo principal deste trabalho foi adaptar metodologias para avaliação da fissuração em revestimentos de
Silva, Narciso Gonçalves da
core  

Aggregate Restraining Effect on Autogenous Shrinkage of Cementitious Materials

open access: yes, 2017
In this paper the restraining effect of aggregates on autogenous shrinkage of cementitious materials is investigated by using different maximum aggregate sizes.
Akcay, Burcu, Burcu Akcay
core   +1 more source

Is long-term autogenous shrinkage a creep phenomenon induced by capillary effects due to self-desiccation? [PDF]

open access: yes, 2018
Long-term shrinkage and creep of concrete can impact the lifetime of concrete structures. Basic creep of cementitious materials is now known to be non-asymptotic and evolve logarithmically with time at large times.
Jean-Michel Torrenti   +7 more
core   +1 more source

Autogenous shrinkage of alkali-activated fly ash slag paste [PDF]

open access: yes, 2017
The autogenous shrinkage of alkali-activated fly ash/slag (AAFS) pastes during first 24 h after casting is an important engineering property, as it significantly contributes to ultimate shrinkage and cracking risk.
Fang, G, Zhang, M
core  

Modelling of autogenous shrinkage of hardening cement paste

open access: yes, 2020
In recent decades, several simulation models have been proposed to predict autogenous shrinkage of cementitious systems. In most of these models, however, only the elastic deformation caused by self-desiccation of the hydrating cement paste is considered.
Lu, T.   +5 more
core   +1 more source

Autogenous Shrinkage of Cementitious materials containing BFS

open access: yes, 2011
In the Netherlands blast furnace slag (BFS) cement is commonly used. Concretes with this type of cement are known for good durability properties. Where concrete is designed to crack in order to let the incorporated steel reinforcement take over tensile ...
Mors, R.M. (author)
core  

Early Age Autogenous Shrinkage of Fibre Reinforced Concrete

open access: yes, 2018
Nordic Concrete Research -lehti on OA-lehti nrosta 58 (1(2018) alkaenConcrete is often sensitive to cracking during the hardening process, and these cracks could be the result of early-age shrinkage.
Ullah, Farid   +2 more
core   +1 more source

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