Construction Quality Control and Quality Assurance
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Construction Quality Control and Quality Assurance Course
Introduction:
An innovative highway industry presents a significant market opportunity for utilizing "waste" resources while reducing the dependence on "natural" resources. Increasingly, selected waste streams and industrial by-products that were previously destined for landfills are being incorporated into sustainable highway design and maintenance practices. This approach allows for the utilization of these materials in asphalt pavements, concrete structures, base courses, and embankments, replacing the need for raw materials.
Course Objectives:
The objectives of this program can be summarized in the following main points:
- Enhancing the skills of road construction engineers in their field
- Introduction to road construction materials
- Determination of engineering properties of road materials
- Quality control and quality assurance in road construction
Who Should Attend?
Road construction engineers working in road construction, construction supervision of road projects.
Course Outlines:
An introduction to road construction materials including but not limited to the following:
- The used materials for road embankment, road pavement (gravel roads, surface dressed roads, paved roads, etc)
- Material properties
- Soil and subbase: Standard tests to determine the engineering properties of road materials such as; sieve analysis, liquid limit, plastic limit, plasticity index, soil classification according to AASHTO classification system, standard and modified proctor tests, California bearing ratio (CBR), modulus of resilient of subgrade soil, relative compaction test, etc.
- Base course: Standard tests to determine the engineering properties of road materials such as; sieve analysis, liquid limit, plastic limit, plasticity index, soil classification according to AASHTO classification system, standard and modified proctor tests, California bearing ratio (CBR), modulus of resilient of subgrade soil, relative compaction test, Los Angeles (abrasion) test, absorption, and disintegration test, etc.
- Bitumen material:
- Asphalt cement
- Cut back asphalt
- Emulsified asphalt
- All standard tests on different types of bituminous materials will be illustrated including but not limited to; bitumen grade test, softening point, ductility, the solubility of bituminous materials in organic solvents, etc.
Asphalt mixtures:
Types of asphalt mixtures
- Hot mix asphalt concrete
- Worm mix asphalt concrete
- Cold mix asphalt concrete
Properties of each mix will be discussed. Also, the components and method of manufacturing will be illustrated
Design of Asphalt concrete mixture
- Testing of materials used in the asphalt mix (coarse aggregate, fine aggregate, mineral filler, binder, etc)
- Specification requirements
- Blinding of aggregate
- Graduation of blinded aggregates
- Marshal method for the design of asphalt mixtures; volumetric relationships, optimum bitumen content, tolerance, job mix formula.
Quality control and quality assurance in road construction
- The importance of quality control in road construction processes
- Selecting materials sources
- Testing of materials
- Inspection of the executed work
- Testing the executed work
- Filling the test result for the quality assurance process
- Quality assurance in road construction processes
- Road construction technology
- Introduction to the new technologies in road construction
- New equipments, new techniques used in road construction