Recent tendencies in concrete technology have been towards to high- performance concrete with a low water-cement ratio. However, high performance concretes have some problems. One of the problems is early-age cracking due to autogenous shrinkage. This study presents the results of an experimental investigation carried out to evaluate the autogenous shrinkage of high-strength concrete. Accordi...

recent tendencies in concrete technology have been towards to high- performance concrete with a low water-cement ratio. however, high performance concretes have some problems. one of the problems is early-age cracking due to autogenous shrinkage. this study presents the results of an experimental investigation carried out to evaluate the autogenous shrinkage of high-strength concrete. accordin...

Shrinkage can be critical factor for the design of structural members due to the length changes by the timedependent deformation. Given the high fluidity and different mixture proportions of SCC, the shrinkage of such concrete can differ from those of conventional concrete or HPC of normal consistency. Proper estimate of autogenous shrinkage of self-consolidating concrete (SCC) can provide engi...

self-desiccation is the major source of autogenous shrinkage and crack formation in low water-binder ratio (w/b) concretes which can be reduced by internal curing. in this paper performance of high strength self consolidating concrete (hs-scc) with w/b of 0.28 and 0.33 including autogenous shrinkage, drying shrinkage, compressive strength, and resistance to freezing-thawing was investigated. th...

The influence of cement particle-size distribution on autogenous strains and stresses in cement pastes of identical waterto-cement ratios is examined for cement powders of four different finenesses. Experimental measurements include chemical shrinkage, to quantify degree of hydration; internal relative humidity development; autogenous deformation; and eigenstress development, using a novel embe...

Abstract This study investigates the shrinkage of two sustainable aluminosilicate blends with fly ash or limestone-calcined clay (LC3). Paste and concrete were prepared using these SCMs for highest possible replacement binder without compromising strength. The chemical autogenous assessed paste samples further investigation conducted on hydration by thermogravimetric analysis (TGA) Fourier tran...

Autogenous shrinkage is related to the chemistry and changes in internal structure of cement concrete paste on drying. This problem drying early stages that occur without any moisture transfer surrounding environment has triggered incorporation fibres matrix fill micropores control cracking (autogenous shrinkage). study aimed at investigating potential use Urena lobata (UL) fibre as microreinfo...

In this study, the early-age strain–stress development of mixtures containing slag cement was measured on uniaxially restrained specimens using a specially designed testing frame starting right after casting. It was found that thermal deformation dominates early-age stress development in low w/cm and low slag cement paste systems. While for concrete, autogenous shrinkage is the major contributi...

Fibre reinforced mortars (FRM) containing fly ash (FA) and ground granulated blast-furnace slag (GGBS) may suffer from volumetric changes despite fibre reinforcement, internal curing be required. This paper evaluates the efficiency of Superabsorbent Polymers (SAP) in reduction shrinkage. Autogenous (AS), plastic (PS) drying (DS) shrinkage were analysed for FRM with three types cement (CEM I, CE...