Cracking is a major concern in building applications. Cracks may arise from shrinkage, freeze/thawing and/or structural stresses, amongst others. Several solutions can be found but superabsorbent polymers (SAPs) seem to be interesting to counteract these problems. At an early age, the absorbed water by the SAPs may be used to mitigate autogenous and plastic shrinkage. The formed macro pores may...

Abstract In this study, glass wool waste was utilized by means of alkali-activation with blast furnace slag. Reaction kinetics, workability, mechanical properties and autogenous shrinkage alkali-activated slag were comprehensively studied. Results indicated an optimal modulus (SiO2/Na2O) the activator related to a long enough setting time high reaction degree paste. The incorporation as partial...

Shrinkage of concrete, along with the cracking that often accompanies it, has been a continual concern of the concrete construction community.1,2 In the past 20 years or so, numerous shrinkage-reducing admixtures (SRAs) have been developed with the goal of reducing drying shrinkage and delaying or preventing cracking.2-6 Most SRAs function by reducing the surface tension of the pore solution in...

In view of the poor accuracy and unsatisfactory effect shrinkage compensation for concrete-filled steel tubular structures large cross-sea bridge (CSTS-LCSB), a new technology CSTS-LCSB is proposed. The mechanism analyzed, including plastic shrinkage, dry autogenous carbonation shrinkage. proportion in ordinary concrete high-strength determined. has different forms environments, strain state en...