Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Concrete, Stone & Masonry

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 03-22-2012, 09:39 AM   #1
Member
 
Join Date: Oct 2008
Location: Albany, NY
Posts: 72
Rewards Points: 75
Default

Pro advice needed on concrete contract language


I'm in the process of submitting bids for replacing the concrete floor in my basement and wanted to get some advice on what to put in the contract/bid specification:

I'm replacing it for two reasons: 1. To gain additional height (to get to habitable height); and 2. To reduce the amount of moisture wicking up through the slab.

The basement is about 600 square feet. There are two slabs--one poured right on top of the other. The contractor will be excavating a ramp down into the basement, remove a section of the concrete block, then pull the concrete out after jack hammering it up (no other access other than internal stairs). I'm having them redo all the plumbing under the basement floor, adding in stubs for the planned plumbing, and redoing the water and sewer lines from the house to the street. They will be putting in an interior drain system and a sump pit.

I have a few questions on what to specify in my bid request:

1. Based on my reading, I will specify the following cement: 'Pour new 4” thick floor with concrete that has the following minimum specifications: 3,000 PSI @ or before 28 days, 4 1/2 sack mix minimum.'

2. For a residential slab, do I need reinforcement, either welded wire frame or rebar? I put the following text in:

'Install welded wire fabric with a minimum of WWF 6” x6” -10 /10 (AKA 6 x 6 - W1.4 x W1.4). Install ONE support chairs/dobies per FOUR square feet so that the wire will not be displaced during concrete pour. Use plywood walkboards during pour to avoid crushing chairs’

3. Can I use a plastic fiber admixture instead of the WWF?

4. Do I need control joints? The basement is a 25' x 25' square with the load carrying beam in the center. One one side, is a 7'x12' bump out. I was going to specify a control joint under the beam where the two support columns were, and a control joint where the bump out and square meet. Is that sufficent?

5. Should I request PVC or ABS under the slab?

6. One contractor put the following in his bid, 'Install EPS Board around perimeter for cricket'. What is a cricket?

7 One contractor wants 50% to start, and 50% to finish; the other wants 1/3 upon starting, 1/3 upon prep (what does that mean), and 1/3 at completion. The total job is in the $20,000 range, and I'm not comfortable giving anybody $10,000 for their promiste to do the job.

Is the following payment schedule reasonable, and which will allow the contractor to pay his employees/subs?

Sign contract - 10%
Ramp excavation complete and block removed - 10%
Concrete Floor Removed - 25%
Plumbing roughed in and inspected - 10%
After concrete pour - 25%
Final payment after final inspections - 20%

8. What type of warranty should I ask for/expect?

Thanks!

toddmanqa is offline   Reply With Quote
Reply

Tags
bid, concrete, contract, sack, slab


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need advice on 1 1/2 inch of asphalt overlay on concrete and old Asphalt stanlam Off Topic 9 12-05-2010 08:46 PM
Poured concrete walls advice? blinkme323 Building & Construction 13 11-21-2010 05:06 AM
Advice needed for Basement Wiring hazey313 Electrical 6 10-05-2010 12:02 AM
Advice needed for draintile under sidewalk dgbehrends Landscaping & Lawn Care 5 11-17-2009 01:03 AM
Basement Concrete Block Mortar Seepage Advice Nightcrawler Building & Construction 6 09-22-2009 09:57 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.