| dc.description.abstract | According to (UBOS, 2016), The Uganda national roads network totals to 20,544km comprising
paved and unpaved roads. As of June 2016, the paved was 4,157kms (20 %) and the unpaved
16,388km (80 %). The unpaved are sometimes also referred to as low volume roads or gravel roads
and their construction is more often than not found to be challenging; the volume of earthwork to
be quarried and hauled is mind boggling. Road engineers strive to conserve natural resources for
future generations while providing aid to the rural community with the rural connectivity to
facilitate a positive impact on social services, agricultural, employment and economic
opportunities to rural masses.
In the case of rural community roads, which amount to over 30,000 km in total, the cost of sealing
is rarely justified and the norm is to use laterite, which can be distant and expensive, and always
requires intensive maintenance and re-grading after each rainy season. The laterite soil is subject
to wind erosion and the extra dust caused from this material is causing a major health problem
(BASIIME, 2016). Lime and waste egg shells are available in Uganda and stabilization has
potential benefits that include greatly reduced road life cycle costs, ability to use more locally
available materials, and reductions in dust emissions. As of 2016, around 80 million metric tons
of eggs were produced annually worldwide (statista, 2016), 883 million eggs were produced
annually in Uganda according to UBOS statistical data 2017. | en_US |
