Gravel Quality Calculation- Data Entry Form
The calculations used on this site have been sourced from Lea, Paige-Green & Jones, 1999, "Neural Networks for performance prediction on unsealed roads"   Please use the following data entry form to input data to the national database for use in assessing your Gravel Quality and to gain recommendations to increase the performance of your Gravel on Unsealed Roads.
Date	*
Identifier Code
Council/Organisation Name
Material Source	*	Please Select Raw - No Processing Screened - 20mm - 40mm Screened - 40mm - 60mm Crushed (Jaw) - 25mm - 40mm Crushed (Impactor) - 25mm - 40mm Crushed (Jaw) - 40mm - 60mm Crushed (Impactor) - 40mm - 60mm Mixed Sample Purchased
Linear Shrinkage %	*
% Pass 0.425mm Sieve	*
% Pass 2.0mm Sieve	*
% Pass 4.75mm Sieve	*
% Pass 26.5mm Sieve	*

* - Denotes Required Field

unsealedroads.com agrees to keep the data you submit private and confidential.

The Council/Organisation Name is NOT displayed in any of the online reports however if Councils would like unsealedroads.com to produce individual reports this can be completed using this information and provided to the Council/Organisation for a small fee.

Please contact unsealedroads.com using the link below to arrange for the production of the report.