Gypsum-based floor sound insulation mortar and preparation method thereof: Fid-Bau Portal

Gypsum-based floor sound insulation mortar and preparation method thereof

MI YANG / LIU YUANZHENG / YANG MAOQIU / LUO FAN / LI XIAOMEI

The invention discloses gypsum-based floor sound insulation mortar and a preparation method thereof. The gypsum-based floor sound insulation mortar is prepared from the following components in parts by weight: 300 to 500 parts of building gypsum, 100 to 250 parts of door panel waste residue, 50 to 150 parts of aerated concrete waste, 50 to 250 parts of waste rubber powder, 0.1 to 0.5 part of air entraining agent, 0.1 to 0.5 part of water-retaining agent, 1.0 to 2.5 parts of retarder, 1 to 2 parts of water reducing agent and 30 to 50 parts of pH regulator. The building gypsum is used as a main cementing material to replace cement, meanwhile, the industrial waste door core board waste residues, the aerated concrete waste and the waste rubber powder are used as sound insulation materials, and by designing and optimizing the component proportion, the prepared sound insulation mortar is stable in performance and high in sound insulation performance. The sound insulation mortar has the characteristics of light weight, high strength, high cracking resistance, good impact sound insulation performance and the like, the cost of the sound insulation mortar is reduced, solid waste resources are recycled, wastes are turned into wealth, consumption and emission are reduced, and the defects in the prior art are overcome.

本发明公开了一种石膏基楼地面隔声砂浆及其制备方法，由以下重量份计组分组成：建筑石膏300~500份，门芯板废渣100~250份，加气混凝土废料50~150份，废旧橡胶粉50~250份，引气剂0.1~0.5份，保水剂0.1~0.5份，缓凝剂1.0~2.5份，减水剂1~2份，pH调节剂30~50份。本发明通过以建筑石膏为主要胶凝材料取代水泥的使用，同时使用工业废弃物门芯板废渣、加气混凝土废料、废旧橡胶粉作为隔声材料，通过设计和优化组分配比，制得的隔声砂浆性能稳定，具有轻质、高强、抗开裂性强、撞击声隔声性能好等特点，降低了隔声砂浆成本，实现固废资源再利用，变废为宝，降耗减排，解决了现有技术中的不足。

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