Influence of super absorbent polymer on mechanical, rheological, durability, and microstructural properties of self‐compacting concrete using non‐biodegradable granite pulver

2020 ◽  
Author(s):  
Lija Rajamony Laila ◽  
Beulah Gnana Ananthi Gurupatham ◽  
Krishanu Roy ◽  
James B. P. Lim
Keyword(s):  
Microstructural Properties ◽  
Self Compacting Concrete ◽  
Super Absorbent Polymer ◽  
Absorbent Polymer

scholarly journals Experimental Study on Self Compacting Concrete Withaddition of Super Absorbent Polymer

2020 ◽  
Vol 955 ◽  
pp. 012029
Author(s):  
Vetrivel Selvakumar ◽  
Keerthana Paneerselvan ◽  
Rasswanth shanmugasundaram ◽  
Mohanraj Asokan ◽  
Senthilkumar Veerachamy
Keyword(s):  
Experimental Study ◽  
Self Compacting Concrete ◽  
Super Absorbent Polymer ◽  
Absorbent Polymer

scholarly journals Performance of super-absorbent polymer as an internal curing agent for self-compacting concrete

2018 ◽  
Vol 162 ◽  
pp. 02023 ◽  
Author(s):  
Suhair Al-Hubboubi ◽  
Tareq al-Attar ◽  
Haider Al-Badry ◽  
Samir Abood ◽  
Rawaa Mohammed ◽  
...  
Keyword(s):  
Fresh Concrete ◽  
Internal Curing ◽  
Curing Agent ◽  
Self Compacting Concrete ◽  
Super Absorbent Polymer ◽  
Strength Tests ◽  
Fresh State ◽  
Concrete Mix ◽  
Water Curing ◽  
Absorbent Polymer

Internal curing agent by using super-absorbent polymer was present in this study, its effect on the properties of self-compacting concrete was evaluated .The SAP content in the concrete mix was 0.5 % by weight of cement. Three procedures for curing were adopted; curing in water, curing in water and air and curing in polyethylene sealed bags. Fresh concrete tests conducted to assess the self-compactability of the produced concrete. Moreover, compressive and splitting strength tests were carried out. The testing program had been extended to the age of 90 days.The use of super-absorbent polymer did not affect the fresh state characteristics of the studied SCC and achieved an increase in both compressive and tensile strengths as compared to the reference concrete mix.

scholarly journals The Influence of Monomer Composition and Surface-CrossLinking Condition on Biodegradation and Gel Strength of Super Absorbent Polymer

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 663
Author(s):  
Jung Soo Kim ◽  
Dong Hyun Kim ◽  
Youn Suk Lee
Keyword(s):  
Treatment Time ◽  
Gel Strength ◽  
Control Group ◽  
Cellulose Content ◽  
Retention Capacity ◽  
Super Absorbent Polymer ◽  
Monomer Composition ◽  
Cellulose Hydrogel ◽  
Improved Performance ◽  
Absorbent Polymer

In this study, a superabsorbent polymer (SAP) comprising poly (IA-co-cellulose-co-VSA-co-AA; ICVA) core-SAP (CSAP) was synthesized through radical polymerization using itaconic acid (IA), acrylic acid (AA), cellulose, and vinyl sulfonic acid (VSA) as monomers. The absorption performances and relative biodegradability of various compositions prepared by adjusting the amounts of cellulose and VSA with constant IA and AA content were compared. Increasing the cellulose content in CSAP contributed to improved biodegradation of the surface-crosslinked SAP (SSAP) and gel strength, although the free absorbency (FA) and centrifuge retention capacity (CRC) decreased. Increasing the VSA content resulted in strong anionicity, which enables the absorption of large amounts of water. Surface-crosslinking technology was applied to the CSAP synthesized with the optimal composition ratio to increase its absorption performance and gel strength. Improved performance of the synthesized SSAP (a CRC of 30.4 g/g, absorbency under load (AUL) of 23.3 g/g, and permeability of 55 s) was achieved by selecting the optimal surface-crosslinking treatment time and the amount of distilled water in the surface-crosslinking solution: as the latter was increased in the surface-crosslinking solution, the AUL and permeability of the SSAP were improved, and its biodegradability was found to be 54% compared to the 100% biodegradable cellulose hydrogel in the control group.

scholarly journals Effects of Super-Absorbent Polymer Application on Yield and Yield Components of Rapeseed (Brassica napus L.)

2015 ◽  
Vol 7 (3) ◽  
pp. 361-366 ◽  
Author(s):  
Fariborz SHEKARI ◽  
Abdollah JAVANMARD ◽  
Amin ABBASI
Keyword(s):  
Water Use ◽  
Field Condition ◽  
Block Design ◽  
Embryo Abortion ◽  
Super Absorbent Polymer ◽  
Irrigation Interval ◽  
Randomized Block Design ◽  
Rapeseed Production ◽  
Polymer Application ◽  
Absorbent Polymer

Limitation of water resources and its great impact on agricultural and natural resources play a crucial role in the efficiency of water use. Applying super absorbent polymer to the soil may be one of the methods to minimize the stress of weather dryness in arid and semi-arid regions. In order to evaluate the effects of hydrophilic polymer application on yield and water use efficiency of rapeseed plants, an experiment was conducted under field condition in 2012 at the Research Farm of the Faculty of Agriculture, University of Maragheh. Treatments’ factors were: (i) 3 super absorbent polymers (SAP) (Taravat A200) levels of 0 (without application), 75 and 150 kg ha-1 A200 application, (ii) three irrigation levels of 80, 120 and 180 mm evaporation from class A basin in main plots, (iii) two cultivars ʻHyola 401ʼ and ʻRVSʼ in sub plots as factorial split plot combination based on completely randomized block design with three replications. The results showed that in all of the measured traits within the experiment there were significant differences between SAP levels. Furthermore, increasing irrigation interval led to an increase in a thousand seeds’ weight, but decreased seed yield. Increasing water stress raised seed oil percent and infertile silique and subsequently resulted in reduced oil yield. ʻHyola 401ʼ was more susceptible to embryo abortion compared with ʻRVSʼ. As a conclusion of the research, SAP (A200) application in quantities smaller than 75 kg ha-1 may be recommended for rapeseed production under field condition.

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