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所在平台: Udemy |
课程主页: https://www.udemy.com/course/concrete-technology-from-basic-to-advanced/
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课程名称：混凝土技术基础 课程概述： 本课程旨在介绍混凝土的基本概念与技术，混凝土是一种由水泥、砂、水和集料混合而成的材料，广泛应用于建筑、道路和桥梁等结构中。本课程将讨论混凝土及其材料的基本原理，包括以下内容： - 理解混凝土材料的理论概念（如水泥、外加剂和集料） - 讨论不同类型的集料和外加剂，以及水泥的水化机制 - 了解新鲜混凝土和硬化混凝土的性质 - 分析影响混凝土工程性质的因素 - 理解混凝土配合比设计的概念 - 了解各种特种混凝土及其应用 课程成果： 完成本课程后，学生应能证明以下知识： - 混凝土的构成、形成过程及所涉及的材料 - 混凝土组成材料的性质 - 集料的物理和机械性能 - 混凝土在新鲜状态和硬化状态下的行为，能够进行现场混凝土的相关测试 - 影响混凝土强度的因素 - 定义特种混凝土及其实际应用 - 能够对混凝土成分及混凝土（新鲜和硬化状态）进行各种测试 - 获取并应用混凝土新鲜及硬化性质的基本知识 - 理解混凝土和集料作为建筑材料的详细信息 - 识别混凝土成分的功能角色，并将此知识运用于混合设计理念 课程内容： 1. 混凝土技术简介：混凝土的属性、等级、优缺点以及成分，包括水泥、集料、水、外加剂等，材料的检验和测试 2. 水泥：波特兰水泥的化学成分、水化作用、凝结过程及水泥的水合结构 3. 外加剂：外加剂的类型，包括矿物外加剂和化学外加剂 4. 集料：集料的分类、颗粒形状及纹理、集料的强度及其他机械性能（包括比重、体积密度、孔隙率、吸附性和含水量的测定） 5. 新鲜混凝土：施工性及其影响因素、施工性测量方法、混凝土的凝结时间、时间与温度对施工性的影响、混凝土的分离与出血、混合与振动过程、混凝土制造步骤、水质的要求及混凝土养护 6. 硬化混凝土：水胶比、混凝土抗拉与抗压强度、影响强度的因素、抗压强度与抗拉强度的关系 7. 硬化混凝土测试：抗压测试、抗拉测试、弯曲测试、劈裂测试、弹性、蠕变与收缩、弹性模量与动态弹性模量 本课程没有先决条件。
COURSE OBJECTIVE Concrete is a mixture of cement, sand, water, and aggregate. Concrete technology is used in building construction, road, and bridges for making columns, beams, slabs, and other load-bearing structures. The course discusses the fundamentals related to concrete and concrete material as below:Understand the theoretical concept of Concrete material e.g. (Cement, Admixtures, and Aggregates)Discuss different types of aggregates, admixtures & the mechanism of hydration of cement.The properties of Fresh and Hardened ConcreteDiscussing the factors affecting the engineering properties of concreteUnderstand the concept of mix design of concreteKnow various types of special concretes & their application. COURSE OUTCOME:After completing this course the student must demonstrate the knowledge of:What is concrete, how it is formed, and what materials are involved?The properties of the constituent materials of concrete.The physical & mechanical properties of aggregates.The behavior of concrete at its fresh and hardened state, carry out tests relevant to the use of concrete on site.Factors affecting the strength of concrete.Define special concretes, and their application for practical purposes.Ability to perform various tests on concrete ingredients and also on concrete (Fresh and Hardened).Acquire and apply fundamental knowledge of the fresh and hardened properties of concreteTo be able to comprehend detailed information about concrete and concrete aggregate is provided as a building material.Identify the functional role of ingredients of concrete and apply this knowledge to mix design philosophyCOURSE CONTENTIntroduction to Concrete Technology: Properties, grades, advantages & disadvantages of concrete, Ingredients of concrete, types of cement, aggregates, water, admixtures, Inspection & testing of materialsCement: Portland cement - chemical composition - Hydration, Setting of cement - Structure of hydrated cement. Admixtures: Types of admixtures - mineral and chemical admixtures.Aggregates: Classification of aggregate - Particle shape & texture -, strength & other mechanical properties of aggregate - Specific gravity, Bulk density, porosity, adsorption & moisture content of aggregate - Sieve analysis - Fineness modulus - Grading curves - Grading of fine & coarse Aggregates - Gap graded aggregate - Maximum aggregate size.Fresh Concrete: Workability - Factors affecting workability - Measurement of workability by different tests - Setting times of concrete - Effect of time and temperature on workability - Segregation & bleeding - Mixing and vibration of concrete - Steps in the manufacture of concrete - Quality of mixing water, Curing of concrete.Hardened Concrete: Water/Cement ratio - Strength of concrete in tension & compression - Factors affecting strength - Relation between compressive & tensile strength.Testing of Hardened Concrete: Compression tests - Tension tests- Flexure tests - Splitting tests -Elasticity, Creep & Shrinkage - Modulus of elasticity - Dynamic modulus of elasticity.
