The disclosure relates to a portable system for distributing building materials comprising a motor vehicle which can be in the form of a truck. Disposed on a flat bed of the truck is at least one container coupled to the motor vehicle. The container can include at least one stirrer wherein the stirrer is for stirring a first component in the container. There can be at least one mixer coupled to the motor vehicle wherein the mixer is for mixing at least one liquid component with the component in the container to form a slurry. Once the slurry is formed, it can be fed to at least one distribution feeder which is then used to feed materials to a job site. This system can include a computer for controlling the mixer, and the distribution feeder to control the distribution of this slurry material. The disclosure can also relate to a process for creating the dry mixture, the slurry and then distributing this slurry so as to create a building component such as a floor. This process can be monitored by a computer, wherein the computer can be used to generate a series of reports such as a job report, a quality control report or a bill.