aggregate testing
We have a complete mobile testing lab for sieves testing. We test sieves on material from four-inch minus down to fine materials, such as sand. We specialize in class V and ballast class XIII, and any other custom designed required by your specific project specifications. We have mobile crushers to install on your project site, if needed. We can adapt all your crushing needs to our production. We test our own material in order to have results within hours not days.
Harper Sand & Gravel enjoys the following Quality Control Department Certifications:
Manager PCI Level III
Technicians PCI Level II