Effects of artificial lightweight aggregate on autogenous shrinkage of concrete

Effects of nano and micro size of CaO and MgO, nano-clay and expanded perlite aggregate on the autogenous shrinkage of mortar

“…(a) Internal curing [1,10,11], super absorbant polymers (SAP) [5], lightweight aggregates [1,[12][13][14], (b) some reactions that have swelling potentials by which the shrinkage is compensated [15], (c) natural fiber, wood-based fibers, cellulose fiber [16][17][18][19][20][21], (d) recycled aggregate [22], (e) expansive reactions [23], expansive cement, MgO, CaO and (f) an internal passive restraint due to large aggregate content (un-hydrated cement, hydrated cement paste skeleton, and other hydration products (e.g. calcium hydroxide microcrystals, cement seeding) [24].…”

The Influence of Pre-wetted Lightweight Aggregates' Volume Fractions on Shrinkage

“…But due to a lower moisture content of Y and Z, a minimal influence of PLWA's volume content to the shrinkage strain of group Y and Z is observed at the age of 1d and 7d (see Fig. 1 (b) and (c) [11,12] should be attributed to this. Stone has a larger stiffness than ceramsite, partial replacing stone by PLWA should increase the long-term shrinkage of concrete.…”

Static And Dynamic Characteristics Of Waste Ceramic Aggregate Fibre Reinforced Concrete

“…Pre-saturation is essential for enabling easy handling and mixing of fresh WCA concrete mix. It is also crucial to benefit from internal wet curing ("autogenous curing") [14][15][16][17][18][19][20][21]. The computed theoretical mix design was amended to accommodate water absorbed by WCA.…”