Reference no: EM132951891
Unit 3 Science and Materials - Higher National Certificate/Diploma in Construction and the Built Environment
Learning Outcome 1: Review health and safety regulations and legislation associated with the storage, handling and use of materials on a construction site.
Learning Outcome 2: Discuss the environmental and sustainability factors which can impact on and influence the material choices for a construction project.
Learning Outcome 3: Present material choices for a given building using performance properties, experimental data, sustainability and environmental consideration.
Learning Outcome 4: Evaluate the performance of a given building in respect of its human comfort requirements.
Assignment Brief
Scenario: You are employed by a large general contractor, a Design Build Technician. The company has recently appointed a new Managing Director who has decided to shift the company's focus towards greater use of sustainable practices. To achieve this, the Managing Director has asked you to produce a series of written reports on how to improve sustainability within the construction process. You have been requested to produce a series of written reports to outline ‘Improving Sustainability through Material Selection'
Task 1 covers LO1 Review the health and Safety regulations and legislation associated with the storage, handling and use of material on a construction site.
(Note a more detailed set of requirements are given at the end of the assignment as Pass, Merit and Distinction Criteria. These may help in completing the four tasks below to a satisfactory level but please answer the questions within the task)
Provide an overview of health and safety regulations related to the handling of materials on site. Consider the use of risk assessments to address hazards and explaining how regulations and legislation apply to specific activities and planning for the safe handling of materials.
Task 2 This task covers both LO2 and LO3. Discuss the environmental and sustainability factors which impact on and influence the material choices for a construction project. Present material choices for a given building using performance properties, experimental data, sustainability and environmental considerations.
Produce a written report which illustrates how the use of sustainable practices on material selection can improve the environmental rating of a completed building.
Your report should include:
a) Using an example, explain the process of material environmental profiling and life cycle assessment. This should consider the benefits of product declaration and environmental certification.
b) Select a project of your choice (which could be provided by your tutor), a case study or a project you are currently involved with in your workplace and produce a waste management plan.
c) Using data from experiments, performance properties available from the manufacturers or in other published sources, select and justify a material selection for a chosen building element (as agreed with your tutor); discussing the properties in relation to regulatory requirements.
d) Give an assessment of the effects of the structural loading of materials to be used as a main column in a 10 story mixed office, retail and residential block.
Task 3 LO4 Evaluate the performance of a given building in respect of its human comfort requirements
. You have been requested to produce one further written report which will evaluate the performance of a given project in terms of human comfort. Your tutor will provide you with details of a suitable project or you may wish to use a work-related project of your own choice.
Your report should include:
• With regard to human comfort, evaluate the performance of selected materials; use calculations to show performance of materials for human comfort.
• Consider the structure mentioned in task 2 (10 story block the ground floor and first floor being a mix of retail and office space.) The dimensions of the flats
The dimensions of each flat are 9m wide by 20m deep and the height is 8.5m. There are six flats on each floor which have only one set of windows and they have an area of 25m2 . The door into the flat opens into a central lobby which leads to stairs at each end and a set of lifts. The U value of the walls is 0.25 watts/OCm2 and the windows are double glazed and have a U value of 1.2 watts/OCm2 When the outside temperature is 50C, how much heat is needed to keep the flat at 200C assuming that the neighbours above, below and at each side and the lobby are all at 200C? How much heat is needed to maintain that temperature.
• Compare this to the heat needed at the end flats (not the top end flats) where they have an additional outside wall 8.5 x 20m with an additional 35m2 of window. Assume that the U values for walls and window remain the same
• Each of the flats has forced ventilation which changes the air once every 30 minutes. If the specific heat of air is 1kj/m3C0 calculate how much heat is lost when the outside air is at 50C
• Illustrate how the environmental rating of a building can be improved through the use of sustainable materials, evaluating the use of passive and active strategies to minimise resource use.
Attachment:- Science and Materials.rar