Effects of Adding Oyster Shell Powder to Hanwoo Manure on its Quality and Microbial Composition

The present study prepared calcined oyster shell powder having chemical composition and crystal structure of calcium oxide and lime, respectively, and investigated the fresh and hardened properties of cement mortar incorporating calcined oyster shell powder as an additive. The test results indicated that the hydration of calcined oyster shell powder promoted the additional formation of Ca(OH)2 at the initial reaction stage, thereby increasing the heat of hydration. In particular, the volumetric increase of calcined oyster shell powder during hydration compensated the autogenous shrinkage of mortar at early ages, ultimately leading to a clear difference in the shrinkage values at final readings. However, an excessive incorporation of calcined oyster shell powder affected the rate of C–S–H formation in the acceleratory period of hydration, resulting in a decrease in the compressive strength development. Meanwhile, the degree of flow loss was inconsequential and rapid flow loss was not observed in the specimens with calcined oyster shell powder. Therefore, considering the fresh and hardened properties of cement mortar, the incorporation of calcined oyster shell powder of approximately 3% by weight of cement is recommended to enhance the properties of cement mortar in terms of compressive strength and autogenous shrinkage.

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Fire-retardant plastic material from oyster-shell powder and recycled polyethylene

Journal of Applied Polymer Science ◽

10.1002/app.22484 ◽

2005 ◽

Vol 99 (4) ◽

pp. 1583-1589 ◽

Cited By ~ 22

Author(s):

Mi Hwa Chong ◽

Byoung Chul Chun ◽

Yong-Chan Chung ◽

Bong Gyoo Cho

Keyword(s):

Plastic Material ◽

Fire Retardant ◽

Oyster Shell ◽

Recycled Polyethylene ◽

Oyster Shell Powder ◽

Shell Powder

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3D printed porous polycaprolactone/oyster shell powder (PCL/OSP) scaffolds for bone tissue engineering

Materials Research Express ◽

10.1088/2053-1591/aab916 ◽

2018 ◽

Vol 5 (4) ◽

pp. 045403 ◽

Cited By ~ 3

Author(s):

Wenfeng Luo ◽

Shuangying Zhang ◽

Yuewei Lan ◽

Chen Huang ◽

Chao Wang ◽

...

Keyword(s):

Tissue Engineering ◽

Bone Tissue Engineering ◽

Bone Tissue ◽

Oyster Shell ◽

3D Printed ◽

Oyster Shell Powder ◽

Shell Powder

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Removal of As(III) from aqueous solution by the oyster shell powder–treated rice husk ash composite (OS-TRHA) pellet

Journal of the Chinese Institute of Engineers ◽

10.1080/02533839.2019.1598284 ◽

2019 ◽

Vol 42 (5) ◽

pp. 411-419

Author(s):

Pichnipa Khownpurk ◽

Walairat Chandra-Ambhorn

Keyword(s):

Aqueous Solution ◽

Rice Husk ◽

Rice Husk Ash ◽

Oyster Shell ◽

Oyster Shell Powder ◽

Shell Powder

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Removal of phosphate by adsorption onto oyster shell powder?kinetic studies

Journal of Chemical Technology & Biotechnology ◽

10.1002/jctb.1175 ◽

2005 ◽

Vol 80 (3) ◽

pp. 356-358 ◽

Cited By ~ 52

Author(s):

C Namasivayam ◽

A Sakoda ◽

M Suzuki

Keyword(s):

Oyster Shell ◽

Kinetic Studies ◽

Oyster Shell Powder ◽

Shell Powder

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Superhydrophobic foam prepared from high internal phase emulsion templates stabilised by oyster shell powder for oil–water separation

RSC Advances ◽

10.1039/c9ra01258c ◽

2019 ◽

Vol 9 (31) ◽

pp. 17543-17550 ◽

Cited By ~ 2

Author(s):

Chuan-ming Yu ◽

Xiao-hui Zhuang ◽

Sheng-wei Zeng ◽

Qi-xing Dong ◽

Zhan-xin Jing ◽

...

Keyword(s):

Oyster Shell ◽

Water Separation ◽

High Internal Phase Emulsion ◽

Internal Phase ◽

Styrene Divinylbenzene ◽

Oil Water Separation ◽

Oil Water ◽

Oyster Shell Powder ◽

Span 80 ◽

Shell Powder

Poly(styrene-divinylbenzene) foam was synthesized through a high internal phase emulsion (HIPE) technique with Span 80 and superfine oyster shell powder as a co-emulsifier, and the foam exhibited excellent superhydrophobicity and oleophilicity.

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