Drought is one of the most important stress factors limiting the seed industry and crop production. Present study was undertaken to create novel drought-resistant pelleted seeds using the combined materials with superabsorbent polymer, poly(2-acrylamide-2-methyl propane sulfonic acid) (PAMPS) hydrogel, and drought resistance agent, salicylic acid (SA). The optimized PAMPS hydrogel was obtained ...

As far as Iran is concerned in arid and semi-arid region and amount of water is limited, improvement of water consuming is very important. One of the ways for storing water is to use superabsorbent polymer. So, this research compared normal and deficit irrigation methods by considering the effects of stockosorb (0.1% and 0.3% by volume) and zeolite (10 weight% and 15 weight%) in two sandy soils...

Self-compacting concrete (SCC) is an innovative type of that does not require vibration for compaction; however, it needs attention in relation to the control thermally generated cracks, due hydration heat mainly during curing process pieces with large volume. In this study we investigated addition Superabsorbent Polymers (SAP) as internal elements self-compacting mortar (SCM), well its thermal...

Well-dispersed graphene oxide sheets were successfully incorporated into a superabsorbent resin through in situ graft polymerization of acrylic acid on carboxymethyl cellulose backbone in the presence of graphene oxide as filler. The structure and properties of the resultant superabsorbent resin were studied in detail by means of a variety of characterization methods. The influence of the feed ...

ID No: 54 Abstract: Concrete is an important building material, due to its ease to use and relatively low cost. However, the presence of cracks endangers the durability of concrete and can result in reinforcement corrosion since a pathway for harmful particles dissolved in fluids and gases is generated. Manual repair costs can go up to half of the annual construction budget. Instead, introducin...

The effect of Superabsorbent polymer (SAP) admixture in patch repair materials on the adhesion to base concrete and protection performance reinforcing bars was investigated. In experiment, one side RC joint specimens were exposed water. Water leakage from interface between material reduced SAP specimen compared conventional Polymer modified mortar specimen. addition, half-cell potential polariz...