WORKING PAPERS - BOBP/WP/1
Investment Reduction and Increase in Service Life of Kattumaram Logs
By
R. Balan
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WORKING PAPERS - BOBP/WP/1 Investment Reduction and Increase in Service Life of Kattumaram Logs
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Executing Agency: FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Funding Agency: SWEDISH INTERNATIONAL DEVELOPMENT AUTHORITY Development of Small-Scale Fisheries in the Bay of Bengal Madras, India. February l980 |
| The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. |
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© FAO 2004
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Kattumaram logs have a relatively short service life because of rotand subsequent water absorption. The logs are also subject to high wear and tear due to frequent beaching and alternate wetting and drying. Melia Dubia and Albizzia Molluccana are two log species from Sri Lanka most preferred for the making of kattumarams. Due to their non-availability and the depletion of sources of similar timber from Kerala forests, there has been a steep rise in the prices of logs. Hence the need for ways to lengthen the life and lower the cost of the traditional type of kattumaram logs. Increase of Service Life: Both chemical and physical means in the form of Copper Chrome Arsenic compounds (ASCU), coal-tar creosote and reinforced plastic sheathing, have been identified to increase the service life of kattumaram logs. Specifications for treatment have been recommended. Investment Reduction: Ten different species of timber abundantly available in the Andaman forests have been identified as substitutes for the traditional timber species. Two in particular - “Didu” and ‘White Dhup” - have been recommended for trials. |
PREFACE
INTRODUCTION
INCREASE IN SERVICE LIFE
CHEMICAL PROTECTION
PHYSICAL PROTECTION
INVESTMENT REDUCTION: ALTERNATE TIMBER SPECIES FOR KATTUMARAMS
RECOMMENDATIONS
APPENDICES:
1. TERMS OF REFERENCE
2. CHEMICAL TREATMENT PLANTS (MADRAS AREA)
3. ANDAMAN TIMBER FOR TRIAL
LIST OF PUBLICATIONS OF THE BAY OF BENGAL PROGRAMME