×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Compaction of crushed stone base

Compaction of crushed stone base

Compaction of crushed stone base

(OP)
Which type of a roller is required to compact a crushed stone base(CRR)specified norminal degree of compaction is 104%by the use of BS-Heavy.Also Iwould like to know how many passes will be required to achieve the spcified degree of compaction?The maximum dry densities achieved from that crushed rock by proctor testing ranges from 2220kg/cum to 2230kg/cum.In addition to this the specification specified two method of Acceptance limits in respect of field density,which are Aggregate apparent density(88) and BS-Heavy(104)which is appropriate and the best among the two methods?Please assist on this.   

RE: Compaction of crushed stone base

Why don't you do a test section and determine the number of passes for your material and compactor?  Most of us have done it - good old fashioned field engineering.

RE: Compaction of crushed stone base

BigH's comment is a good one.

Without identifying the "type" of aggr. you are dealing with.......
Achieving compaction on base course is dependant on several variables. Aside from the apparent compactive effort (done correctly) moisture would be the beginning hurdle.

It has been my experience you cannot require a certain roller/compactor,"if" in fact that is where you are heading with this line of discussion.

The better compactors I "have seen" operate are a "Rex", and a rather large and "specialized" Caterpillar, with regard to crushed aggr. base. This is not to say there are not one million and one better compactors out there.

Finally, if you are this perplexed on your requirements....perhaps you should request assistance from someone who has first-hand knowledge of what you are trying to establish.
 

RE: Compaction of crushed stone base

pick up the phone and call your closest local road contractor and just ask. You will probably get a much better and quicker answer than on this forum...

RE: Compaction of crushed stone base

How are you using the answer?

f-d

¡papá gordo ain't no madre flaca!

RE: Compaction of crushed stone base

lol

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources