Free 186 More Best Homemade Tools eBook:  
Get 500+ tool plans, full site access, and more.

User Tag List

Results 1 to 5 of 5

Thread: Concrete vibrator - video

  1. #1
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    22,967
    Thanks
    7,101
    Thanked 34,413 Times in 9,688 Posts

    Concrete vibrator - video

    Concrete vibrator. By Balkan Handyman. 5:56 video:


    500 Tool Plans

  2. The Following User Says Thank You to Jon For This Useful Post:

    nova_robotics (Aug 11, 2022)

  3. #2
    Supporting Member
    Join Date
    Sep 2018
    Posts
    1,293
    Thanks
    5,317
    Thanked 645 Times in 347 Posts

    nova_robotics's Tools
    I think my girlfriend must be thinking of pouring some concrete.

    Am I allowed to reuse jokes on here?

    186 More Best Homemade Tools eBook

  4. The Following 2 Users Say Thank You to nova_robotics For This Useful Post:

    lassab999 (Aug 12, 2022), rayh__ (Aug 11, 2022)

  5. #3
    Supporting Member
    Join Date
    Jul 2020
    Posts
    40
    Thanks
    65
    Thanked 13 Times in 10 Posts
    I think he must be making concrete cookies.

    My Wacker has a 3/4 HP motor.

  6. #4
    Supporting Member hemmjo's Avatar
    Join Date
    Feb 2017
    Posts
    1,648
    Thanks
    115
    Thanked 883 Times in 540 Posts

    hemmjo's Tools
    That does look like a good little tool for making small castings. HOWEVER, keep in mind you should NOT vibrate concrete for that long. It causes the aggregates to segregate, rather than remain a homogeneous mix.


    For reference
    "For most of concrete mixes, over-vibration creates the problem of segregation in which the denser aggregates settle to the bottom while the lighter cement paste tends to move upwards. If the concrete structure is cast by successive lifts of concrete pour, the upper weaker layer (or laitance) caused by segregation forms the potential plane of weakness leading to possible failure of the concrete structure during operation. If concrete is placed in a single lift for road works, the resistance to abrasion is poor for the laitance surface of the carriageway. This becomes a critical problem to concrete carriageway where its surface is constantly subject to tearing and traction forces exerted by vehicular traffic."

  7. #5
    MasterMaker's Avatar
    Join Date
    Aug 2012
    Posts
    18
    Thanks
    7
    Thanked 0 Times in 0 Posts
    As far as size of oscillations go I think I would just have made a wood frame for that mold and attached a plywood tab to bolt a cheap chinese pad-sander to...

    That said, a plywood T on a pad-sander is also likely to be quite effective and much simpler, or even simpler just a piece of plywood that is 50% longer than the pad(and the bit you stick down into the concrete could also be used to spread it out...)....



    186 More Best Homemade Tools eBook

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •