Pre-Construction Activities

Presentation to the Owners

March 23, 2012

Dry Cut Test

On Wednesday, March 28, graduate student Dan O'Hara built a form for two concrete samples. He then mixed a small batch of concrete and poured it into his forms.

After letting the concrete set for 12 hours, Terry Bryan did his first dry cut test using a circular saw with a diamond blade. The concrete was still fairly green, so the cut did not come out very smooth. After the concrete has had a full 24 hours to set, we will attempt another cut.

AU Demo Lab Assignment

Below is the original assignment sheet for the community service project in Professor Williams' Concrete Structures class.                                                                              

Preliminary Activities: We will be constructing a 30’ x 40’ concrete slab. The slab will is to 4 inches thick, and will be constructed on University property. As a part of your pre-construction services, the owner has requested a detailed Sketch-Up model showing (at a minimum) the following:

a) A basic layout drawing locating the slab in relation to pre-established points on property

b) A drawing of the slab superimposed on a photograph of the site

c) A detailed drawing of the formwork including exact material sizes and lengths, splice locations, splice details, steel stake locations, keyway details, form elevations, and location and depth of all control joints

d) A drawing showing the exact location of all reinforcing steel within the slab, including an accommodation for 2’ long splices, and specification of tie wire locations

e) A drawing showing the pour sequence, utilizing a concrete truck (drawn to scale) indicating the locations of the truck at various times of the pour

f) A drawing showing a complete material list, including all formwork, fasteners and concrete.

Groups: You will choose your own groups at the beginning of class on Monday, March 19. Groups will be comprised of 4 or 5 members. Each group shall designate a leader. Each group shall also choose one or two members that are charged with pre-construction services, who can immediately begin constructing the Sketch-Up model. Send (not later than noon on March 19) a listing of members ant titles to Professor Williams and Richard Allen.

Presentation of Pre-Construction Activities:

You will present your Sketch-Up drawings to the owners’ representative, Professor Bruce Smith, on Friday, March 23, in room 303 at 9:00 a.m. The presentation should last 20 minutes, and may include a 10 minute question and answer session.

Grading Criteria for Pre-Construction Presentation:

• 50% successful completion of all requirements
• 20% quality of drawings
• 20% quality of presentation
• 10% accuracy and completeness of material takeoff
• 10% extra credit possible

This grade for this presentation will be distributed equally to all students in the class, and will account for 20% of the entire grade for the project, so choose your group’s representative carefully.