TO THE QUESTION OF MIX DESIGN AND PROPORTIONING OF ADDITIVES-MODIFIERS IN WOOD CONCRETE
Data about woody filler substances which have harmful impact on processes of strength setting in cement are presented. There are performed ways of decrease of harmful effect of the given substances to a cement slurry. By developed express technique principal views of additive- accelerators for hardening and cement setting have been investigated: chloride calcium, soda, hydrochloric acid, alkali silicate, magnesium sulphate, manganese sulphate, nitrate of lime, ammonium sulphate, zinc sulphate, copper sulphate, chloride potassium, chloride sodium, and author''s additive Аrbel. Kinetics research of strength setting in modified wood concrete is carried out. The kinetics saturation of dried wood concrete samples in 100 % moisture is studied. It is investigated an influence of W/C parametre on modified wood concrete strength. Possibility of decrease of W/C parametre value and wood concrete strength increase at the expense of use of complex additives which include plasticizers and additives accelerators of hardening is demonstrated.