scholarly journals Effects of kaolin clay on the bond quality of coconut coir dust tannin-formaldehyde based wood adhesives

1996 ◽  
Vol 24 (2) ◽  
pp. 127 ◽  
Author(s):  
O Akaranta ◽  
D Wankasi
Keyword(s):  
Kaolin Clay ◽  
Bond Quality ◽  
Wood Adhesives ◽  
Coir Dust ◽  
Coconut Coir

scholarly journals Optimalisasi Waktu Pengomposan dan Kualitas Pupuk Kandang dari Kotoran Kambing dan Debu Sabut Kelapa dengan Bioaktivator PROMI dan Orgadec

2017 ◽  
Vol 35 (1) ◽  
pp. 136
Author(s):  
Linda Trivana ◽  
Adhitya Yudha Pradhana
Keyword(s):  
Organic Fertilizer ◽  
Nutrient Content ◽  
Optimal Time ◽  
High Potassium ◽  
Organic C ◽  
High Nutrient ◽  
Coir Dust ◽  
Coconut Coir ◽  
Goat Manure

Animal manures can be used as organic fertilizer because the high nutrient content such as nitrogen (N), phosphorus (P), and potassium (K). The nutrients are needed by plants and soil for fertility. One of the animal manuresthat can be used for organic fertilizer is goat manure. Goat manure is used as organic fertilizer it contains relatively more balanced nutrients than other natural fertilizer. In addition, the goat manure is mixed with the goat urine that alsocontains high nutrients. Coconut coir dust contains high potassium so that the addition of coconut coir dust in organic fertilizer will increase the potassium content (K) in organic fertilizer. The purpose of this research was to find out theinfluence of effective Orgadec and PROMI bioactivators on the optimal time of composting and the quality of the organic fertilizer. The organic fertilizer was analyzed to determine the content of N, P, K, organic-C, C/N ratio, watercontent, and pH. The result of analysis is compared with SNI 19-7030-2004. Organic fertilizer analysis was conducted on day 0, 10, 20, 30, 40, and 50. The result of the organic fertilizer analysis with Orgadec bio-activator more effectiveand faster on the decomposition organic matter in the compost compared PROMI (<20 days). The quality of organic fertilizer with Orgadec bioactivator on day 10 and 20, while organic fertilizer with PROMI on day 20, 30, 40, and 50days was in accordance with the quality stated in SNI 19-7030-2004 (C/N ratio, levels of N, P, K, water, and organic-C).

Experimental investigation of 0.6 in. diameter strand lifting loops

PCI Journal ◽  
2021 ◽  
Vol 66 (2) ◽  
pp. 71-87
Author(s):  
Sandip Chhetri ◽  
Rachel A. Chicchi ◽  
Andrew E. N. Osborn
Keyword(s):  
Failure Modes ◽  
Concrete Strength ◽  
Bond Stress ◽  
Pullout Capacity ◽  
Bond Quality ◽  
Concrete Blocks ◽  
Mohs Hardness ◽  
Side Face ◽  
Pullout Failure

Very little experimental data have been published relating to the pullout capacity of prestressing strand lifting loops. To address this gap in knowledge, 13 pullout tests were conducted on strand lifting loops with 0.6 in. (15.24 mm) diameter, 270 ksi (1860 MPa) strand. Straight and bent orientations were tested for single loops at different embedment depths. Loops were embedded in 12 in. (304.8 mm) wide and 44 in. (1117.6 mm) deep concrete blocks and subjected to monotonic, static loading until failure. Marginal bond quality of the strand (18.2 kip [81 kN]), Mohs hardness (3.6), and concrete strength (3000 psi [20.7 MPa]) resulted in an average bond stress value of 400 psi (2758 kPa) at failure. Most tests exhibited pullout failure modes and adequate ductility. Three loops tested at 32 in. (812.8 mm) embedment with 6 in. (152.4 mm), 90-degree bends experienced brittle side-face blowout failures. These failures were due to inclination of the lifting, which led to a reduced edge distance. A safe uniform bond stress of 199 psi (1372 kPa) is recommended for 0.6 in. diameter strand.

Bond Quality of Laminated Wood Made from Surian (Toona sinensis Roem) and Sengon (Paraserianthes falcataria (L.) Nielsen)

2017 ◽  
Vol 18 (1) ◽  
pp. 32-38 ◽  
Author(s):  
Eka Mulya Alamsyah ◽  
Ihak Sumardi ◽  
Sutrisno . ◽  
Atmawi Darwis ◽  
Yoyo Suhaya
Keyword(s):  
Bond Quality ◽  
Paraserianthes Falcataria ◽  
Toona Sinensis

Effect of double-layer application on bond quality of adhesive systems

2018 ◽  
Vol 77 ◽  
pp. 501-509 ◽  
Author(s):  
Satoshi Fujiwara ◽  
Toshiki Takamizawa ◽  
Wayne W. Barkmeier ◽  
Akimasa Tsujimoto ◽  
Arisa Imai ◽  
...  
Keyword(s):  
Double Layer ◽  
Adhesive Systems ◽  
Bond Quality

scholarly journals Feasibility study of coconut coir dust briquette

2016 ◽  
Vol 12 (2) ◽  
pp. 369-376
Author(s):  
KK Saha ◽  
MM Hossain ◽  
MR Ali ◽  
MM Alam
Keyword(s):  
Physical Properties ◽  
Rice Husk ◽  
Research Work ◽  
Calorific Value ◽  
Economic Feasibility ◽  
Production Costs ◽  
Mixing Ratio ◽  
Water Penetration ◽  
Coir Dust ◽  
Coconut Coir

This research work was conducted on economic feasibility of briquette made of coconut coir dust mixed with rice husk at different ratio. This study sought to assess the physical properties and calorific value of briquette and to establish the demand and willingness of potential users to substitute rice husk briquette and firewood. It was observed that briquette made from mixed coconut coir dust and rice husk at the ratio of 1:2 and 1:1 had desirable properties as compared to rice husk briquette. The percent of shatter indices, density, percent of resistance to water penetration, degree of densification and calorific value of briquette of mixing ratio 1:2 were found 99.75, 1.52gm/cc, 87.5, 11.35 and 4043 kcal/kg and of mixing ratio 1:1 were found 99.82, 1.48gm/cc, 87.5, 10.84 and 3657 kcal/kg, respectively. In case of rice husk briquette, the above values were 99.21, 1.40gm/cc, 75, 10.66 and 3537 kcal/kg, respectively. The production costs of mixing ratio 1:2 and 1: 1 were 3.27 Tk/kg and 3.10 Tk/kg, respectively which were lower than that of rice husk briquette. In partial budget, the substitution propositions among the selected briquettes indicated that coconut coir dust briquette of mixing ratio 1:1 appeared as the most impressive one.J. Bangladesh Agril. Univ. 12(2): 369-376, December 2014

scholarly journals Preparation of Reducing Sugar Hydrolyzed from High-Lignin Coconut Coir Dust Pretreated by the Recycled Ionic Liquid [mmim][dmp] and Combination with Alkaline

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Hanny Frans Sangian ◽  
Junaidi Kristian ◽  
Sukmawati Rahma ◽  
Hellen Kartika Dewi ◽  
Debra Arlin Puspasari ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Reducing Sugar ◽  
Coir Dust ◽  
Coconut Coir
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