I8:J[i yr",il#ffI i,i:,;ffi":j[i*',,'o'" for constructins the concrete footins for a major tha ei_width 6m - t , ,t Jbil'# Hl Pb^*( )"r-h Ini ,,^

Underside of footing (top of brinding) is '1.5 m berow existing ground rever { 'Data:

' 50mm of blinding concrete (to trim and level base of foundation and provide cleanworking area for trades to erect formwork and fix reinforcement)' ffter 2 days curing of the blinding concrete pedestrian ,t."r. and erection offormwork on can commence' 1.2 m of working space around the footing and a 4So batter to the earth sides' Formwork is required on each of the vertilar faces of the iooting. Reinforcement is approx .140

kg / m3 of concrete. Allow for 25% bulking of excavited material' Formwork to remain in place for 7 days.after concrete pour for concrete to part cure' 4fter stripping formwork, backfiil to eiisting revet in ioom, t"y"r,' The concrete for the footing must be pour6d in a singre pour

You have the following plant available:. 20T excavator with 0.9m3 bucket that can excavate this materiar at 40 m3 per hour.. Sufficient trucks to keep up with the excavatorr Vibrating plate compactor that can compact filr materiar (to 100% modified

compaction) at the rate of delivery and spreading by the'ior excavator.r A concrete pump with a capacity of 25 m3/hour. -

What You Need to Do;1. Define the activities required to construct and backfill around the footing.2. llt9ylaJe ltp quantities of work for each ggtrvitv ui" ,rit. ,t ,"r.ri"i, specified in4S1181-1982 Method of Measurement of civir Engineering works etc. a;r;iili;;_

[n" through Swinburne Library).3. Determine the work hours required to comprete each activitv.4. show the assumption that you make, the type ,nJ nurno"i'6i*ort"r. in your crewand the way you carcurate the resurts. ee luioeo oy tre oevetopment or,i,o* .i"*, in- Chapter 9 of the textbook and indicate the-producti'viiviul"'tat you have used.5' Select an appropriate crew size and calculate ilre ouiltion oi'eacn activity. (Hint: list^ g.agh di.ffeqelt type. of tradesperson on separate tine (row)).6' using the information in.your project ptanhing spre"o)sr,eJi (below) indicate to thenearest whole day how long you need to allow io complete irris pr6lect. Arirrl 1.,"tthere are no wet weather delays.

Trades available for crew are:Tradesperson Guide to C)rrtnui r*r to.loii-'J^

Foreman C)ne ncrCarpenter (formwork) 0.75 mhrs/m2 rate io ar;tF;t.]5Jr-=Steel Fixer (reinforcement) 200ko/hrPlant operator (excavator) See plant atailableLabourer One each peieErpenGr

2

Project Planning Sheet:

all assumptions and calculatrons

Page 1 of 2

ConctPteFoundation

PLANl.lot to Scale

50 mmBlinding Concrete SECTION A.A \

Not to Scale I

4tPage 2 of 2

' Concrete Foundation

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