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WRAP Tools training
Designing out Waste Tool for Civil
Engineering workbook
Learn to use the Designing Out Waste Tool for Civil Engineering by setting up your own project, or using a pre-populated example.
Project code: ISBN:
Research date: August 2010 Date: August 2010
WRAP’s vision is a world without waste, where resources are used sustainably. We work with businesses and individuals to help them reap the benefits of reducing waste, develop sustainable products and use resources in an efficient way. Find out more at www.wrap.org.uk
Document reference: [e.g. WRAP, 2006, Report Name (WRAP Project TYR009-19. Report prepared by…..Banbury, WRAP]
Written by: Susan Steensma of Cyril Sweett
Front cover photography: [Add description or title of image.]
WRAP and (Consultants Name) believe the content of this report to be correct as at the date of writing. However, factors such as prices, levels of recycled content and
regulatory requirements are subject to change and users of the report should check with their suppliers to confirm the current situation. In addition, care should be taken
in using any of the cost information provided as it is based upon numerous project-specific assumptions (such as scale, location, tender context, etc.).
The report does not claim to be exhaustive, nor does it claim to cover all relevant products and specifications available on the market. While steps have been taken to
ensure accuracy, WRAP cannot accept responsibility or be held liable to any person for any loss or damage arising out of or in connection with this information being
inaccurate, incomplete or misleading. It is the responsibility of the potential user of a material or product to consult with the supplier or manufacturer and ascertain
whether a particular product will satisfy their specific requirements. The listing or featuring of a particular product or company does not constitute an endorsement by
WRAP and WRAP cannot guarantee the performance of individual products or materials. This material is copyrighted. It may be reproduced free of charge subject to the
material being accurate and not used in a misleading context. The source of the material must be identified and the copyright status acknowledged. This material must
not be used to endorse or used to suggest WRAP’s endorsement of a commercial product or service. For more detail, please refer to WRAP’s Terms & Conditions on its
web site: www.wrap.org.uk
Designing out Waste Tool for Civil Engineering workbook 1
How to use this workbook
This workbook will take you through the process of setting up and analysing a project in the Designing Out Waste
Tool for Civil Engineering, step-by-step.
You can use your own project data to set up your own project, or work on a pre-populated example project.
Simply work through the instructions provided.
Task box: This provides instructions. Follow the instructions to perform tool functions
Information box: This provides information. See these boxers for a description of the tool screens and/or
background information relating to the tasks.
This workbook has been designed for use with an explanatory demonstration of the Tool, either through formal
training or the Designing Out Waste Tool for Civil Engineering video modules:
www.wrap.org.uk/constructiontutorials
Information explaining the Tool’s functionality is also available from the Tool’s login screen, including:
The Designing Out Waste Tool for Civil Engineering User Guide
The Designing Out Waste Tool for Civil Engineering Quick Start Guide
The Designing Out Waste Tool for Civil Engineering Data Report
Designing out Waste Tool for Civil Engineering workbook 2
User Journey
1.0 Registration / login .................................................................................................................... 3 2.0 Add new project .......................................................................................................................... 4 3.0 Enter basic project details .......................................................................................................... 4 4.0 ‘Build’ your project ..................................................................................................................... 6 5.0 Forecast waste .......................................................................................................................... 11 6.0 Record actions and impacts ..................................................................................................... 14 7.0 Report ....................................................................................................................................... 17 8.0 Use your project as a template ................................................................................................ 20 9.0 Project comparison ................................................................................................................... 22
Designing out Waste Tool for Civil Engineering workbook 3
1.0 Registration / login
Task 1.1 Access the Tool at http://dowtce.wrap.org.uk. Click ‘Register’.
Task 1.2 Fill in the form and click ‘Register’. Remember your password.
Information Your email address and password will be required to log on in future.
Designing out Waste Tool for Civil Engineering workbook 4
2.0 Add new project
Task 2.1 Click on ‘Add new project’ in the menu bar
Information To set up a new project from scratch click ‘Add new project’. Alternatively, to use an existing project as a template, click ‘Example projects’ and select from a range of pre-programmed examples.
3.0 Enter basic project details
Task 3.1 Enter the basic project details on the form shown.
Information Enter the project data as best you can at this stage. Remember you are aiming to create an indicative rather than a detailed waste forecast. You can refine the project data as the design progresses. Hover the cursor over fields to see Help text. Note you can switch off the auto-help by un-selecting ‘Display auto help’.
Designing out Waste Tool for Civil Engineering workbook 5
Task 3.2 Select whether to add data from other existing WRAP DOWT-B analyses
Information If desired, you can choose to add data from existing WRAP Designing out Waste Tool for Buildings (DoWT-B) analyses. This may be useful if, for example, you are demolishing buildings on site and will re-use the material in the civil construction. For now, unless you need to use data from projects you have already analysed in the DoWT-B, click ‘No’.
Task 3.3 When you have finished, click on ‘Save & next’
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4.0 ‘Build’ your project
Information Within the project builder you can select the different Elements that comprise your project (e.g. foundations, earthworks, drainage, pavements etc).
Task 4.1 Click on the first ‘Element’, Foundations
Information A drop-down menu will appear listing out the various sub-elements from which you can select.
Designing out Waste Tool for Civil Engineering workbook 7
Task 4.2 Drag the sub-elements across from the Element Library into your project.
Information Click on the sub-element and drag it across to the ‘My Project Contains’ box as shown. You may select as many sub-elements within each element as are necessary.
Task 4.3 Click ‘Edit’ next to the sub-element in your ‘My Project Contains’ box to add further details.
Information The ‘Edit Element’ pop-up will allow you to add parameters, a description of the component, and depth. It also allows you to add distance travelled (e.g. from the supplier to the site); this will be used by the tool when calculating CO2 for the project.
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Task 4.4 Click ‘View image’ in the Edit Element pop-up to view a diagram of the sub-element
Information Viewing the diagram may help you identify the sub-element required and assist with determining width, depth and length.
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Task 4.5 Add in the timeframe for the sub-element.
Task 4.6 Repeat the process until you have added all necessary sub-elements in each relevant element category.
Designing out Waste Tool for Civil Engineering workbook 10
Task 4.7 When you are finished ‘building’ your project, click ‘Save and next’.
Information This will take you on to the next section, ‘Solutions & impacts’ (see section 5).
Designing out Waste Tool for Civil Engineering workbook 11
5.0 Forecast waste
Task 5.1 View the ‘Solutions and Impacts’ screen.
Information This screen shows the project performance and headline results for your project.
Task 5.2 View the Performance graph entitled ‘ Element – Quantity of materials consumed’
Information This graph shows the quantity of material consumed for each of the elements. You will note that, at this stage, the ‘Baseline’ and ‘Projected’ tonnages are the same. This is because no design solutions have yet been incorporated.
Designing out Waste Tool for Civil Engineering workbook 12
Task 5.3 View the table entitled ‘Headline results’
Information This table shows the key or headline results for the initial project. It provides figures for the likely amount of waste arisings, waste to landfill, disposal cost, CO2 equivalent, and recycled content at baseline (i.e. standard) practice, and at good practice.
Task 5.4 Hover over the side tab ‘Project Log’ to view the project log
Information This table shows the amount of material consumed and wasted. It shows the tonnage for demolition and excavation, along with the cost for each of the elements incorporated.
Designing out Waste Tool for Civil Engineering workbook 13
Task 5.5 Hover over the side tab ‘Mass balance by element’ to view the mass balance for the project
Information This graph shows the mass balance for the project, tracking the amount of material required (i.e. for construction of the elements) and the amount of surplus material available (from excavation etc).
Information The aim of the ‘Solutions and Impacts’ section is to help design teams focus their effort on the elements that consume or waste the most material, and then to specify actions which will have an impact on the amount of material used or the level of wastage. You may want to use the graphs, tables or report as a focus for your design review workshop.
Designing out Waste Tool for Civil Engineering workbook 14
6.0 Record actions and impacts
Task 6.1 Select an element (and sub-element, if desired) to which you would like to apply design solutions
Information Select the first element (and sub-element, if desired) for which you would like to investigate design solutions.
Task 6.2 Select the design principle you would like to apply to that element
Information Select the design principle you would like to apply from the drop-down menu. Note that you will be able to apply more than one design principle to an element/sub-element by completing iterations of this process.
Designing out Waste Tool for Civil Engineering workbook 15
Task 6.3 Click ‘Add solution’ to add details of the relevant design solution
Information Note that the options provided will differ depending upon the design principle and element that have been selected.
Task 6.4 Select the relevant design solution
Information After selecting from the drop-down list of opportunities, you will be able to add a description of the specific design solution, if desired. Note that you can click ‘save & add another’ if you wish to add further solutions. When all solutions have been added, click ‘save’.
Designing out Waste Tool for Civil Engineering workbook 16
Task 6.5 Enter the combined impact of your design solutions.
Information Scroll down to the ‘Impacts’ section and enter the proposed quantity of material you will reuse/reclaim. Also enter the source and the type from the drop-down menus. Note that the text above the table provides the ‘Amount of material from demolition activities available for reuse’ and the ‘Amount of material from excavation available for reuse’.
Task 6.5 Click ‘Save impacts’
Information When you have completed this for the element, click ‘save impacts’. You can then go back to task 6.1 and repeat the process for the other elements.
Designing out Waste Tool for Civil Engineering workbook 17
7.0 Report
Task 7.1 Click on the ‘Reporting’ tab to go to the reporting screen
Information The Reporting screen provides three reporting options: –
The ‘Download performance report’ option will download an Excel report describing the impacts you have recorded.
The ‘use project as a template’ option will enable you to create other versions of your project for example, with different solutions – which you can then compare.
The ‘compare projects’ function will enable you to compare your project against another project, to review the impact of different design options.
Task 7.2 Click ‘Download performance report’
Information This will open the Performance report for your project in Excel.
Designing out Waste Tool for Civil Engineering workbook 18
Task 7.3 View the performance report
Information This will open the Performance report for your project in Excel. You will note that the report has several tabs:
Project details
Project performance
Combine impact of solutions
Design stage actions
SWMP waste forecast
Transport
Element overview
Project timeline
Designing out Waste Tool for Civil Engineering workbook 19
Task 7.4 Click on the various tabs to view the project information
Task 7.5 Use the performance report to inform your Design Team meeting
Information The ‘Project performance’ tab also gives a series of questions on:
Demolition and excavation materials available for reuse
Quantity of materials consumed
Potential reduction in waste arisings - Standard vs. Good practice
Potential reduction in value of materials wasted
Potential increase in recycled content
Potential reduction in the embodied carbon lost as wasted material
CO2 emissions from transportation
How to quantify the impact of design solutions. These can form the basis for discussion at your design team meeting. It can also be a useful source of information for informing clients about the project performance and the options available.
Designing out Waste Tool for Civil Engineering workbook 20
8.0 Use your project as a template
Task 8.1 Return to the ‘My projects’ screen
Information You may wish to develop alternative specifications to give different options for your project. To do this, you can use an existing project as a template, to which you can then make alterations.
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Task 8.2 Select ‘Use project as template’
Information For the project you wish to use as a template, click the icon in the ‘Use project as template’ column.
Task 8.3 Give your new project a name
Information A dialogue box will pop up inviting you to enter a name for your new project. It can be useful to enter a name that reflects the nature of the changes you will make, for example, if the template project was simply entitled ‘Highways example project’, and you now wish to create an option which includes recycled aggregate, then you may decide to call it ‘Highways example project using recycled aggregate’.
Designing out Waste Tool for Civil Engineering workbook 22
Task 8.4 Edit your new project
Information Your new project will then appear in the ‘My projects’ list. You can now click on it and edit it to meet your new specification.
9.0 Project comparison
Task 9.1 Return to the ‘My projects’ screen
Information When you have created your alternative specifications, and added in your different options for solutions and impacts, you may want to compare these.
Task 9.2 Select the relevant projects in the ‘Compare projects’ column on the right, then click the ‘ Compare projects’ button
Designing out Waste Tool for Civil Engineering workbook 23
Task 9.3 View the Excel comparison report
Information After you click ‘Compare Projects Report’, and Excel document will automatically open. This will compare the details of your selected projects.
Designing out Waste Tool for Civil Engineering workbook 24
Task 9.4 Consider the information provided in selecting the best design for your project
Information The report provides a comparison on key performance indicators, such as waste arisings, waste to landfill and cost of waste. In addition it compares recycled content, embodied CO2 and other useful factors. It also provides a series of useful graphs, comparing performance on the amount of recycled aggregate incorporated, the waste arisings and the cost of waste for each element. You can then use this information in selecting the best design options for your project.
