L-joint trials: Part 3: Relative performance of a range of preservative products
J K Carey
Long-term trials using the L-joints described in BS EN 330 and AWPA Standard E9-97 have been in progress at BRE since 1982.
This paper records the current assessments of decay of L-joints in trials started between 1982 and 1994 with treatments applied to both Scots pine sapwood (Pinus sylvestris) and spruce (Picea sp.). Data are provided on a range of active ingredients including TnBTO, PCP, acypetacs zinc, azoles, isothiazolones, IPBC and disodium octaborate tetrahydrate.