Theoretical analysis of water absorption kinetics of recycled aggregates immersed in water

2021 ◽  
Vol 302 ◽  
pp. 124156
Author(s):  
Kun Liang ◽  
Yingjie Hou ◽  
Jianchun Sun ◽  
Xiaoguang Li ◽  
Jiahong Bai ◽  
...  
Keyword(s):  
Theoretical Analysis ◽  
Water Absorption ◽  
Recycled Aggregates ◽  
Absorption Kinetics ◽  
Kinetics Of

scholarly journals Physical properties and water absorption kinetics of three varieties of Mucuna beans

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ajibola B. Oyedeji ◽  
Olajide P. Sobukola ◽  
Ezekiel Green ◽  
Oluwafemi A. Adebo
Keyword(s):  
Physical Properties ◽  
Water Absorption ◽  
Rate Constant ◽  
Geometric Mean ◽  
Seed Mass ◽  
Activation Energies ◽  
Mucuna Pruriens ◽  
Absorption Kinetics ◽  
Kinetics Of ◽  
Soaking Temperature

AbstractThe physical properties and water absorption kinetics of three varieties of Mucuna beans (Mucuna pruriens, Mucuna rajada and Mucuna veracruz) were determined in this study. Physical properties including length, width, thickness, geometric mean diameter, sphericity, porosity, bulk density, area, volume and one thousand seed mass were calculated while hydration kinetics was studied by soaking Mucuna beans in water at 30 °C, 40 °C and 50 °C and measuring water uptake at 9 h interval. Peleg’s equation was used to model the hydration characteristics and Arrhenius equation was used to describe the effect of temperature on Peleg’s rate constant k1 and to obtain the activation energies for soaking. Significant variations were observed in almost all the physical properties of the different varieties, however, there were no significant differences (p < 0.05) in their thicknesses and bulk densities. The effectiveness of fit of Peleg’s model (R2) increased with increase in soaking temperature. Peleg’s rate constant k1 decreased with increase in soaking temperature while k2 increased with temperature increase. Activation energies of Mucuna pruriens, Mucuna rajada and Mucuna veracruz were 1613.24 kJ/mol, 747.95 kJ/mol and 2743.64 kJ/mol, respectively. This study provides useful information about the properties of three varieties of Mucuna beans that could be of importance to processors and engineers for process design and optimization.

scholarly journals Experimental Study of the Water Absorption Kinetics of the Coconut Shells (Nucifera) of Cameroun

2016 ◽  
Vol 07 (03) ◽  
pp. 159-170 ◽  
Author(s):  
Dieunedort Ndapeu ◽  
Ebénezer Njeugna ◽  
Nicodème Rodrigue Sikame ◽  
Sophie Brogly Bistac ◽  
Jean Yves Drean ◽  
...  
Keyword(s):  
Experimental Study ◽  
Water Absorption ◽  
Absorption Kinetics ◽  
Coconut Shells ◽  
Kinetics Of

Study on water absorption kinetics of black beans during soaking

2020 ◽  
Vol 283 ◽  
pp. 110030 ◽  
Author(s):  
Peng Li ◽  
Yan Li ◽  
Li Wang ◽  
Hui Zhang ◽  
Xiguang Qi ◽  
...  
Keyword(s):  
Water Absorption ◽  
Absorption Kinetics ◽  
Black Beans ◽  
Kinetics Of

Thermal behavior and water absorption kinetics of polylactic acid/chitosan biocomposites

2020 ◽  
Author(s):  
Nor Helya Iman Kamaludin ◽  
Hanafi Ismail ◽  
Arjulizan Rusli ◽  
Sam Sung Ting
Keyword(s):  
Thermal Behavior ◽  
Water Absorption ◽  
Polylactic Acid ◽  
Absorption Kinetics ◽  
Kinetics Of

Water Absorption Kinetics of Guar Seeds and Unhulled Guar Splits

2012 ◽  
Vol 6 (5) ◽  
pp. 1355-1364 ◽  
Author(s):  
Rajesh K. Vishwakarma ◽  
Uma S. Shivhare ◽  
Saroj K. Nanda
Keyword(s):  
Water Absorption ◽  
Absorption Kinetics ◽  
Kinetics Of

Influence of pre-blanching on the water absorption kinetics of soybeans

2007 ◽  
Vol 78 (3) ◽  
pp. 965-971 ◽  
Author(s):  
A. Gowen ◽  
N. Abu-Ghannam ◽  
J. Frias ◽  
J. Oliveira
Keyword(s):  
Water Absorption ◽  
Absorption Kinetics ◽  
Kinetics Of

scholarly journals Strength and Water Absorption of Sustainable Concrete Produced with Recycled Basaltic Concrete Aggregates and Powder

2021 ◽  
Vol 13 (11) ◽  
pp. 6277
Author(s):  
Ibrahim Sharaky ◽  
Usama Issa ◽  
Mamdooh Alwetaishi ◽  
Ahmed Abdelhafiz ◽  
Amal Shamseldin ◽  
...  
Keyword(s):  
Water Absorption ◽  
Edge Length ◽  
Recycled Concrete ◽  
Recycled Aggregate ◽  
Recycled Aggregates ◽  
Partial Substitution ◽  
Small Reduction ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates ◽  
Sustainable Concrete

In this study, the recycled concrete aggregates and powder (RCA and RCP) prepared from basaltic concrete waste were used to replace the natural aggregate (NA) and cement, respectively. The NA (coarse and fine) was replaced by the recycled aggregates with five percentages (0%, 20%, 40%, 60% and 80%). Consequently, the cement was replaced by the RCP with four percentages (0%, 5%, 10% and 20%). Cubes with 100 mm edge length were prepared for all tests. The compressive and tensile strengths (fcu and ftu) and water absorption (WA) were investigated for all mixes at different ages. Partial substitution of NA with recycled aggregate reduced the compressive strength with different percentages depending on the type and source of recycled aggregate. After 28 days, the maximum reduction in fcu value was 9.8% and 9.4% for mixtures with coarse RCA and fine RCA (FRCA), respectively. After 56 days, the mixes with 40% FRCA reached almost the same fcu value as the control mix (M0, 99.5%). Consequently, the compressive strengths of the mixes with 10% RCA at 28 and 56 days were 99.3 and 95.2%, respectively, compared to those of M0. The mixes integrated FRCA and RCP showed higher tensile strengths than the M0 at 56 d with a very small reduction at 28 d (max = 3.4%). Moreover, the fcu and ftu values increased for the late test ages, while the WA decreased.

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