Fosroc Conbextra BB is a non-shrink cementitious bridge bearing grout.Formulated specifically for grouting of bridge bearings and parapet post baseplates. Also used for grouting beneath flanged lighting columns.The dry powder is a blend of Portland cements, graded silica sands and additives to which only a controlled amount of clean water is added in situ to produce a highly flowable, non-shrink grout.
