| 摘要 |
<p>A method of manufacturing a construction material is disclosed which relates to a construction material comprising cement, rubber, fibres and chemical admixtures. The method comprises the steps of pre-treating the rubber pieces and/or fibres by applying a chemical admixture to said rubber and/or fibres and leaving the rubber and/or fibres to absorb at least some of the chemical admixture over a period of at least two hours; and subsequently mixing said pre-treated rubber and/or fibres with cement and water to form said construction material. The rubber and fibres may be chopped or shredded car tyres. The chemical admixture may be an air-entrainer, a water-reducer, a retarder, an accelerator, a plasticiser or a superplasticiser.</p> |
