P14416: CONCRETE Arborloo base

Evan BurleyAnthony Deleo

Mackenzie KeehfusJoe Omilanowicz

Victoria Snell

Agenda• Introduce Team• Project Background• Problem statement & project deliverables• Stakeholders• Use Scenarios• Prioritized list of needs (customer rqmts)• Engineering requirements• Draft of Project Plan

Team Introduction & Roles

Member Role

Victoria Snell (ISE) Team Leader

Evan Burley (ME) Engineer

Joe Omilanowicz (ME) Engineer

Mac Keehfus (ME) Engineer

Anthony Deleo (ISE) Engineer

Arborloo

• A latrine-like sanitation device designed to function over a small pit and to be moved to a new pit when filled

• Utilize compost by planting tree in used pit• Purpose to provide affordable sanitation in poor,

underdeveloped areaso Originally designed for use in Zimbabwe

Peter Morgan’s Arborloo

• DIY Project• Composition

o Bag of cemento “Good river sand”o Thick wire

• Mounted on a “ring beam” of bricks (mold)

• Addition of soil, wood ash & leaves creates compost

Arborloo Shortcomings

• Requires installation by mason

• The slab must be kept covered and wet for up to 10 days before it can be moved and used

• Expensive

Haitian Arborloo/P13414

• Problem Statement: design and develop an affordable, element-resistant, portable arborloo that leverages both local and manufactured materials. In addition, the team is aiming to produce a structure that Haitians will want to own. Work led to EPA proposal to investigate more design options.

P13414 Summary

P14416 Problem Statement

• Current Stateo Today’s arborloo takes two days to install and is not easily transportable. The current design

is also not socially appealing to the Haitian population.

• Desired Stateo Provide an affordable concrete base that is easy to move and install. The desired base

should be aesthetically pleasing to users and a worthwhile purchase for sanitation improvements rather than storage or social status.

• Project goalso Low cost (<$50 to purchase)o Base design that safely covers an 18-20” diameter, 3-4 ft. deep holeo Easily constructed using simple hand toolso Portableo Resistant to environmental damageo Has modular designo Haitians want to purchase

• Constraintso Proposed budget= $1500o Base must be relatively lightweight for transportationo Base must be made using concrete

Additional Project Deliverables

• Two completely different prototypes• Two molds• Design drawings (base and molds)• Assembly manuals• Bill of Materials• Test plan• Clearly documented test results• Technical paper• Poster

P14416 StakeholdersPrimary:• Haitian users• Local Builders• Local Hardware Stores• Local Entrepreneurs• Sarah Brownell• Brian Thorn• EPA• RIT

Secondary:• Pedro Cruz Dilone (Master’s Student)• Peter Morgan• International non-profit organizations (HOPE,

Pazapa)• Jim Myers- Associate Executive Director of HOPE• SOL (Sosyete Oganize Pou Lanati) Society

organized for nature- local organization• Ministry of Public Health and Population • Mayors (Local Government)

Use Scenarios Considered

Scenario 1: Arborloo bought by a really poor family and has to carry it for 6 hours from the store to their home.

Scenario 2: Arborloo bought with all the different options, by a “middle class” family trying to show off their social status.

Scenario 3: A contractor is installing multiple Arborloo’s a day and can make more money the faster he installs them.

Scenario 4: A heavy set individual, weighing approximately 250lbs buys an Arborloo and uses it on a daily basis

Customer Requirements

9

The system costs less than $50-$100 to users (at production level quantities).

The system is lightweight and moveable (by donkey or person walking for up to 6 hours)

The system can be installed in less than 4 hours.

The system can be installed with simple hand tools.

The system confers social status to the owner.

3

The system supports the user over an arborloo hole 18-20” in diameter, 3-4 feet deep

The system is safe to use for users (falling, tripping, slipping, moving to new hole).

The system keeps pests out of the pit.

The system looks “modern” in a Haitian context.

The system is welcoming and comfortable.

The system can be financed in parts.

1 The system is a product, not a DIY project.

The system resists weather and pest damage.

The system minimizes environmental impact throughout the lifecycle.

Importance Scale

P14416 Engineering Requirement

House of Quality

P14416 Preliminary Schedule

Code of ethics, team norms and values

Create peer review form

Create website homepage

Define team rolesDevelop project plan

Prepare project review

Peer reviews

Finalize House of Quality

Next Steps

• Benchmarking

• Various concrete research

• Concrete mixture testing

Issues & Corrective Actions

• Unlikely will be able to interact with users directlyo Will need to get feedback from a variety of sources (individuals who

have traveled to Haiti, past projects, other cultural resources)

• Lack of expertise on concrete and its strengtho In contact with Civil Engineers at RITo Contact with concrete specialist in ME-T program at RITo Currently waiting for Haitian concrete materialso Research on different types of reinforcement for concrete

Questions/Feedback