chapter6mortar砂浆.pdfVIP

Chapter 6 Construction Mortar  Introduction  The composites of mortar  Technical properties  Mix design of mortar 20:34 2 Laying bricks with Portland cement mortar Mortar holding weathered bricks 3 The Qiao Family, Shanxi Construction 20:34 Materials 4 Mid- century castle 1. Definition (composites) Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. Binding material  Mortar Fine aggregate Water Admixture Construction mortar is regarded as concrete with sand rate of 100%. 20:34 5 Selection of the binding materials  Common binding materials——cement, lime, gypsum…  According to the application environment:  Dry environment- air hardening binding material  High humidity/ in water: hydraulic binding material 20:34 6 2. Applications  Construction mortar can be used to: Bonding block material Jointing material for pipes and board Surface plastering Anticorrosion or waterproof treatment 20:34 7 3.Feasures of mortar Thin layer Low strength grade (2.5～20MPa） 20:34 8 4. Classifications According to binding material, mortar can be divided into three t