Cedar of Goa (Cupressus lusitanica)
Family: Cupressaceae
Common names: Cedar of Goa, Cedro, Cedro amerillo, Cedro blanco, Cedro de la Sierra, Cipres, Cipres de Mexico, East Africa cypress, East African Cypress, Gretado galan, Gretdo amerillo, Gretolo amerillo, Lindley cypress, Lusitanica cypress, Meru cypress, Mexican cypress, Narok cypress, Pinabele, Pinabete, Portuguese cypress, Teatlale, Tlascal, Tlatzcan, Tlazzcan
Distributed in: Argentina, Brazil, Chile, Guatemala, Honduras, Kenya, Mexico, New Zealand, South Africa, Tanzania, Zambia (Africa, Central America, Latin America, Oceania and S.E. Asia)
Common uses: Beehives, Boat building (general), Boxes and crates, Broom handles, Cabinetmaking, Concrete formwork, Fuelwood, Furniture, Joinery (external): ground contact, Joinery, Light construction, Particleboard, Piling, Plywood corestock, Plywood, Poles, Posts, Pulp/Paper products, Railroad ties, Shingles, Toys, Turnery, Vehicle parts, Veneer, agricultural implements
Tree size: Tree height is 30-40 m
Colors: the heart isYellow, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow, Yellow.The grain isVariable (figure), the textureMediumand the lusterPronounced
Natural durability: Resistant to termites, Susceptible to insect attack
LightInduced Color Change: Lighter
Kiln Schedules: UK=J US=T10D5S/T8D4S Fr=4
Kiln Drying Rate: Naturally dries slowly
Drying Defects: Slight twist/warp, Splitting
Ease of Drying: Variable
Comments: General finishing qualities are rated as good
Blunting Effect: Blunting effect on machining is slight
Boring: Moderately easy
Cutting Resistance: Fairly Difficult to Very Difficult to saw
Gluing: Easy to glue
Mortising: Easy to mortise
Moulding: Easy to mould
Movement in Service: Easy to mould
Nailing: Holds nails well, Pre-boring recommended
Planing: Very Good to Excellent
Resistance to Impregnation: Sapwood is moderately resistant
Response to hand tools: Fairly Difficult to Difficult to Work
Veneering qualities: Veneers easily, Veneers moderately easy
Steam bending: Very poor
Screwing: Easy to screw, Screwing yields good results; Turning: Fairly Easy to Very Easy
Painting: Satisfactory
Plantation timber info:; Polishing: Satisfactory; Staining: Finish is generally satisfactory;
- Numerical data Metric
- Numerical data English
- Strength properties
- References
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Item |
Green |
Dry |
Metric |
Specific Gravity |
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Density |
|
464 |
kg/m3 |
Bending Strength |
467 |
732 |
kg/cm2 |
Crushing Strength |
257 |
426 |
kg/cm2 |
Hardness |
|
171 |
kg |
Impact Strength |
|
71 |
cm |
Shearing Strength |
|
79 |
kg/cm2 |
Stiffness |
81 |
95 |
1000 kg/cm2 |
Tangential Shrinkage |
|
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% |
Radial Shrinkage |
2 |
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% |
Weight |
448 |
384 |
kg/m3 |
Maximum Load |
0,35 |
0,49 |
cm-kg/cm3 |
Toughness |
|
109 |
cm-kg |
Static Bending |
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kg/cm2 |
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| | | | Item | Green | Dry | English | Bending Strength | 6644 | 10419 | psi | Density | | 29 | lbs/ft3 | Hardness | | 378 | lbs | Impact Strength | | 28 | inches | Maximum Crushing Strength | 3669 | 6071 | psi | Shearing Strength | | 1124 | psi | Stiffness | 1157 | 1356 | 1000 psi | Toughness | | 95 | inch-lbs | Work to Maximum Load | 5 | 7 | inch-lbs/in3 | Weight | 28 | 24 | lbs/ft3 | Radial Shrinkage | 2 | | % | Tangential Shrinkage | 5 | | % | |
Bending strength (MOR) = low 0 Modulus of Elasticity (stiffness) = very low 0 Max. crushing strength = medium 0 Hardness (side grain) = very soft 0 Density (dry weight) = 23-30 lbs/cu. ft. 0 Shearing strength (parallel to grain) = very low 0 Density (dry weight) = 31-37 lbs/cu. ft. 0 Shrinkage, Radial = very small Shrinkage, Tangential = small Shrinkage, Tangential = very small Shearing strength (parallel to grain) = low Work to Maximum Load = very low Shrinkage, Radial = small Max. crushing strength = low Toughness-Hammer drop (Impact Strength) = low Toughness (total work) = very low Shrinkage, Tangential = moderate Hardness (side grain) = soft Shrinkage, Tangential = fairly large Shrinkage, Radial = moderate Shrinkage, Radial = large Modulus of Elasticity (stiffness) = medium Modulus of Elasticity (stiffness) = low Bending strength (MOR) = medium
Berni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchBier, H.,1983,The strength properties of small clear specimens of New Zealand-grown,timber,New Zealand Forest Service Forest Research Institute, FRI Bulletin No.41Bois, P.J.,1966,The Strength Properties of Tanzania Timbers,Tanzania Forest Div. Util. Sec. Moshi Tech. Note, No.35Bolza, E., Keating, W.G.,1972,African Timbers - the Properties, Uses and Characteristics of 700 Species,C.S.I.R.O. Div. of Building ResearchBryce, J. and Kitambi, G.,1960,The Air-drying Properties of some Tanganyika Timbers Technical Note No 23,Tanganyika Forest Department Utilisation Division Technical NoteBryce, J.M.,1967,Commercial Timbers of Tanzania,Tanzanian Forestry Division Util. Sec. MoshiChudnoff, M.,1984,Tropical Timbers of the World,U.S.A. Department of Agriculture, Forest Service, Forest Products,Laboratory, Madison.Dallimore, W. and Jackson, A. Bruce,1966,A Handbook of Coniferae and Ginkgoaceae Fourth Ed. Revised by S.G.,Harrison,Edward Arnold (Publishers) Ltd. LondonForest Products Research Laboratory U.K.,1957,A Handbook of Softwoods,Department of Scientific and Industrial Research Forest Products Research,HMSOHaslett, A.N.,1986,Properties and Utilisation of Exotic Speciality Timbers Grown in New,Zealand Part III: Cypresses - Chamaecyparis lawsoniana Parl. X,Cupressocyparis leylandii Dall. Cupressus lusitanica Mill. Cupressus,macrocarpa Hartw.,New Zealand Forest Service, Forest Research Institute, FRI Bulletin No.119Murira, K.,1984,Natural Durability Tests of Tanzanian Timbers 1955 - 1982,Tanzania Forestry Research Institute, Timber Utilisation Research Centre,,Moshi.Paterson,1961,Average mechanical and physical properties of Kenya exotic softwoods,Kenya Forest Department, Technical Note No.82 (revised 1963)Poynton, R.J.,1957,Notes on Exotic Forest Trees in South Africa (Second Edition, Revised,South African Forestry Department Bulletin No.38Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressRendle, B.J.,1969,World Timbers (3 Vols.,Ernest Benn Ltd. LondonScott, M.H.,1935,Weights of South African Growth Timbers,South African Department of Agriculture and Forestry Bulletin,No.145,Forest Products Institute, Forestry Series No.1Scott, M.H.,1951,The Quality and Uses of Exotic Softwoods in South Africa,Empire Forestry Review 30:235-249Shukla, N.K. and Sangal, S.K.,1986,Preliminary studies of strength properties of some exotic timbers,Indian Forester 112:5, 459-465Takahashi, A.,1975,Compilation of data on the Mechanical Properties of Foreign Woods (Part 2,Central and South America,Shimane University, Japan, Research Report on Foreign Wood No.4Takahashi, A.,1978,Compilation of Data on the Mechanical Properties of Foreign Woods (Part,III) Africa,Shimane University, Japan, Research Report on Foreign Wood No. 7Tanzania - Timber Marketing Co. Ltd.,1978,Timber from TanzaniaTanzania Forest Department,1961,The Movement of Timbers Technical Note No.29,Tanzania Forest Department, Utilisation Division Technical NoteTanzania Forest Division,1966,Kiln Drying Schedules for Tanzania Timbers Technical Note no.38,Tanzania Forest Div. Util. Sec. MoshiTanzania Forest Division,1967,The Weights and Shrinkage of some Local Timbers,Tanzania Forest Div. Util. Sect. Technical Note,No.25Uganda Forest Department,1969,The Shrinkage of Some Ugandan Timbers,Uganda Forestry Department Timber Leaflet,No.47
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