FRESH CONCRETE WITH SELF-HEALING ABILITY AND A DRY MIXTURE FOR ITS PREPARATION

摘要

The invention relates to fresh concrete with a self-treating ability, which contains in 1 m3 30 to 300 kg of water, 135 to 450 kg of cement or 135 to 600 kg of a mixture of cement and at least one substituent thereof, 1000 to 2400 kg of aggregate with an upper fraction of up to 40 mm, whereby at least 55 % by weight of aggregate is composed of natural aggregate, and then 10 to 300 kg of inert construction and demolition waste and/or waste from industrial production of construction products in powder form with a particle size of 5 to 250 μm, preferably from 5 to 125 μm. In addition, the invention also relates to a dry mixture for preparing this concrete.