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Anonymous Poster #1

Emulsion Not Performing

04/02/2014 12:24 AM

Potholes appearing after heavy rainfall. The emulsion is blamed although there are other factors in play. Is this emulsion mix okay: Water- 1800liters, Asphalt Emusifier- 38kg (kwz-802), Bitumen 80/100 - 107liters.

Our lab do not have proper equipment to do viscosity tests or to find the binder content etc. Please advise or comment on any simple test to sort this problem out in this tropical climate.

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#1

Re: Emulsion not performing

04/02/2014 1:21 AM

https://wiki.answers.com/Q/How_do_you_make_bitumen_road

https://www.google.com/search?q=how+to+build+a+road+with+bitumen

Potholes after heavy rain in tropical climate. You better check the "other factors."

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#2

Re: Emulsion Not Performing

04/02/2014 10:12 AM

Is this mixture designed to support the weight of the vehicles as if it was a bridge? If the ground is being washed out from under road surface. The mix is not the problem.

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#3

Re: Emulsion Not Performing

04/02/2014 6:50 PM

Reduce the amount of water by 25%. Increase the emulsifier content by 10%.

Roll out well, keep dry for 7 days after application, if possible.

I stayed at a Holiday Inn Express last night.

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Anonymous Poster #1
#7
In reply to #3

Re: Emulsion Not Performing

04/15/2014 6:50 PM

Reduce the amount of water by 25%. Increase the emulsifier content by 10%.

Roll out well, keep dry for 7 days after application, if possible.

Thanks a lot for the advise given. It was very helpful.

Some information regarding emulsion says that you should spread the aggregate onto the sprayed emulsion immediately when it is still brown colored to ensure maximum imbedding of the aggregate. However, I thought the emulsion should be allowed to "break" before spreading of the cover aggregate.

I would like your comment on this.

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#8
In reply to #7

Re: Emulsion Not Performing

04/15/2014 7:06 PM

Yep good way to destroy an asphalt pavement. Anyone in the asphalt business will tell you never use an emulsifier over asphalt because it removes its flexibility. If you going to put aggregate on it hope you have good window insurance because your going to need it.

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#4

Re: Emulsion Not Performing

04/03/2014 1:15 PM

Several years ago some researchers at Case Western Reserve University were working on a "non-Newtonian fluid" in bags for use in potholes. Haven't heard anything recently.

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#5

Re: Emulsion Not Performing

04/03/2014 1:20 PM

Our contractors drill core samples of paving materials and send the cores to labs for analysis. No reason to do it yourself. The lab can make any measurement you require. In fact, many large paving jobs require that the cores be sent to independent test labs.

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#6

Re: Emulsion Not Performing

04/03/2014 10:48 PM

Why are you using a water base emulsion mix? They are not designed for asphaltic concrete roads. You'll damage the asphalt already in place. Best to cut out damaged area of road redo the subbase and reapply proper asphalt mix.

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