Cost of CEB Block: Difference between revisions

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*$1 for unstabilized, $1.20 for stabilized - [http://www.midwestearthbuilders.com/BuildingInfo.html]
*$1 for unstabilized, $1.20 for stabilized - [http://www.midwestearthbuilders.com/BuildingInfo.html]


=OSE Costs=
=Proejcted OSE Costs - Expected to be Attained at [[Summer X]] 2021=
{{Hint|One scenario missing is soil digging, which adds 1.5 gallon per hour cost of fuel to the overall operation.<br/>Another missing scenario is blending of soil before entering hammermill. Usually soil is not at the right sand-clay ratio right out of the ground. If it is, ignore this. If not, the material needs to be blended before entering the hammermill as we have only one soil input which requires pre-blended soil-sand mixture.}}
{{Hint|Absolute production cost ranges from 5 to 40 cents per block under the assumptions below. Note - soil digging is not included, which adds 1.5 gallon per hour cost of fuel to the overall operation.}}
*Costs based on availability of on-site soil
*Costs based on availability of on-site soil
*<span style="color:red"> 6 block per minute machine </span> - 8 hour shift - 1 gallon per hour for CEB, 0.5 gallon per hour for tractor (25% duty cycle assuming nearby pile of soil that has already been dug), one gallon per hour for soil mixer, local clay soil, 10% cement stabilized
*6 block per minute machine - 8 hour shift - 1 gallon per hour for CEB, 0.5 gallon per hour for tractor (25% duty cycle assuming nearby pile of soil that has already been dug), one gallon per hour for soil mixer, local clay soil, '''10%''' cement stabilized
**'''5.5 maximum ideal rate. I decreased my machine rate in order to hold compression longer to improve block.'''
*Total costs for 2880 block:
*Total costs for 2880 block:
#2.5 gal* 8=20 gal fuel = $50 at current gas prices
#2.5 gal* 8=20 gal fuel = $50 at current gas prices
#<span style="color:red">Cement - $10 per bag for 100 block - 29 bags of cement - $290</span>
#Cement - $10 per bag for 100 block - 29 bags of cement - $290
##'''1 94lb bag gives 44 block at 10%'''
##94=0.1(BatchMass). BatchMass=940lb. 940lb / 21 lb per block = 44 block
#Labor - $25/hr for tractor operator, $15/hr for stacking block on pallets x2 - $440/day
#Labor - $25/hr for tractor operator, $15/hr for stacking block on pallets x2 - $440/day
#Water - 20 ml/block = 58 liters = 15 gallons at 2 cents - 30 cents in water
#Water - 20 ml/block = 58 liters = 15 gallons at 2 cents - 30 cents in water
#Plastic wrap
#Plastic wrap
#<span style="color:red">Tarps to cover plastic wrapped blocks to keep sun away OR overhead of covered structure to store wrapped pallets</span>
#Pallets
#Pallets


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<iframe width="600" height="371" seamless frameborder="0" scrolling="no" src="https://docs.google.com/spreadsheets/d/e/2PACX-1vRnJwyI4Vf5CGyX5Nih8E3BkQnqO5gp1vY5EfB1Da9MdSsG7qXFwX3ihnMlHAyl7QK3REbPMTnX-_3-/pubchart?oid=932276818&amp;format=interactive"></iframe>
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=Upload of Key Costs=
=Upload of Key Costs=
[[File:CEBblockcost.jpg|200px]]
[[File:CEBblockcost.jpg|200px]]
=Links=
*[[Soil Preparation for CEB]]
*Aidan notes - [[Talk:Cost_of_CEB_Block]]

Latest revision as of 01:42, 30 April 2021

Commercial

  • $1 for unstabilized, $1.20 for stabilized - [1]

Proejcted OSE Costs - Expected to be Attained at Summer X 2021

HintLightbulb.png Hint: Absolute production cost ranges from 5 to 40 cents per block under the assumptions below. Note - soil digging is not included, which adds 1.5 gallon per hour cost of fuel to the overall operation.

  • Costs based on availability of on-site soil
  • 6 block per minute machine - 8 hour shift - 1 gallon per hour for CEB, 0.5 gallon per hour for tractor (25% duty cycle assuming nearby pile of soil that has already been dug), one gallon per hour for soil mixer, local clay soil, 10% cement stabilized
  • Total costs for 2880 block:
  1. 2.5 gal* 8=20 gal fuel = $50 at current gas prices
  2. Cement - $10 per bag for 100 block - 29 bags of cement - $290
  3. Labor - $25/hr for tractor operator, $15/hr for stacking block on pallets x2 - $440/day
  4. Water - 20 ml/block = 58 liters = 15 gallons at 2 cents - 30 cents in water
  5. Plastic wrap
  6. Pallets

Total costs -

edit spreadsheet

Upload of Key Costs

CEBblockcost.jpg

Links

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