SIK-HK_2020_en_web_neu
158 SIK-Holz ® › Robinia Robinia Robinie: Robinia pseudoacacia L. Abbreviation according to DIN 4076, part 1: ROB Trade names: Robinia, false acacia, black locust Charakteristics Robinia Oak Pine Gross density (g/cm³) 0.78 0.71 0.52 Adjusting rate of wood to humidity very low low high Modulus of elasticity (N/mm²) 16,200 13,000 11,000 Resistance to bending (N/mm²) 150 95 100 Tensile strength (N/mm²) 164 110 100 Pressure resistance (N/mm²) 86 52 47 Shearing resistance (N/mm²) 16 11.5 10 Hardness on facets (N/mm²) 48 34 19 Resistance class 1–2 2–3 3–4 The robinia builts a distinctive coloured heartwood which differentiates from the narrow yellowish-white sapwood. Robinia wood is extremely heavy and hard and accordingly has good strength values that are significantly higher than those of the oak. It is tough, flexible and easy to bend. Robinia also is characterized by an above average resilience across the grain on dynamic stress. The heartwood has high natural resistance to wood-destroying fungi and insects. In terms of robustness robinia is superior to all other types of wood and even poor quality specimens can last on average at least 20 years in the ground. At a felling age of 40−50 years the robinia grown in Europe, reach a trunk hight of 20−25 m and a diamter of 30−40 cm. Traditional use, for example as fence posts, mine timber or fuel, becomes gradually less important. In recent years the wood has been used to manufacture high-quality products. It is particular useful for constructive applications outside which are biologically and mechanically demanding.
Colour ‹ SIK-Holz ® 159 Colour selection for large equipment pieces: robinia light robinia dark white yellow red burgundy green light green dark blue grey black without glaze Ropes and net colours: yellow red Colours green blue Colours can have either a positive or a negative effect on our optical sensory perception. Certain colour combinations direct the eye and draw attention to a particular situation or a location. The careful use of colours can add something to the look and composition of a playground. That means the planner is able to use colour in order to add a particular emphasis to the playground which can stimulate children’s play. For our coating system, we use an environmentally harmless, transparent wood varnish for all large playground equipment and certain large play equipment. Equipment with springs and smaller equipment are, according to their natural colouration, painted with opaque wood varnish. Our colours are saliva and sweatresistant and are particularly suited to children’s playground equipment due to their raw material composition. By default our equipment is coated in Robinia light, unless stated otherwise. We are happy to arrange wood stains and rope colours according to your wishes. black nature Spring colours: yellow (big) blue (small)
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158 <strong>SIK</strong>-Holz ® › Robinia<br />
Robinia<br />
Robinie: Robinia pseudoacacia L.<br />
Abbreviation according to DIN 4076, part 1: ROB<br />
Trade names: Robinia, false acacia, black locust<br />
Charakteristics Robinia Oak Pine<br />
Gross d<strong>en</strong>sity (g/cm³) 0.78 0.71 0.52<br />
Adjusting rate of wood to humidity very low low high<br />
Modulus of elasticity (N/mm²) 16,200 13,000 11,000<br />
Resistance to b<strong>en</strong>ding (N/mm²) 150 95 100<br />
T<strong>en</strong>sile str<strong>en</strong>gth (N/mm²) 164 110 100<br />
Pressure resistance (N/mm²) 86 52 47<br />
Shearing resistance (N/mm²) 16 11.5 10<br />
Hardness on facets (N/mm²) 48 34 19<br />
Resistance class 1–2 2–3 3–4<br />
The robinia builts a distinctive coloured heartwood<br />
which differ<strong>en</strong>tiates from the narrow<br />
yellowish-white sapwood. Robinia wood is extremely<br />
heavy and hard and accordingly has<br />
good str<strong>en</strong>gth values that are significantly<br />
higher than those of the oak. It is tough, flexible<br />
and easy to b<strong>en</strong>d. Robinia also is characterized<br />
by an above average resili<strong>en</strong>ce across the<br />
grain on dynamic stress. The heartwood has<br />
high natural resistance to wood-destroying<br />
fungi and insects. In terms of robustness<br />
robinia is superior to all other types of wood<br />
and ev<strong>en</strong> poor quality specim<strong>en</strong>s can last on<br />
average at least 20 years in the ground.<br />
At a felling age of 40−50 years the<br />
robinia grown in Europe, reach a trunk hight<br />
of 20−25 m and a diamter of 30−40 cm.<br />
Traditional use, for example as f<strong>en</strong>ce posts,<br />
mine timber or fuel, becomes gradually less<br />
important. In rec<strong>en</strong>t years the wood has be<strong>en</strong><br />
used to manufacture high-quality products.<br />
It is particular useful for constructive applications<br />
outside which are biologically and<br />
mechanically demanding.
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