| 摘要 |
<p>Use of particles of calcium carbonate having a surface area higher than or equal to 10 m2/g in the production of construction materials, in particular plaster, cement render, mortar and concrete. The resulting hardened construction materials exhibit simultaneously several of the following properties, good mechanical resistance, high porosity, low specific weight, high permeability to water vapor, low permeability to liquid water, low surface water absorption, improved flexural strength, improved impact resistance, good surface aspect, good sound absorption and high resistance to UV. Good consistence and high workable life are obtained for the materials before hardening. The construction materials can be used for exterior and interior applications.</p> |
