to load, unload and store construction materials and products; to move their carts; to prepare the mortar and mixtures, mix them in containers, spread them, cut them, press them and drill them; unglue the asphalt, pavement, floors and other surfaces made of different materials; to disassemble the resistance structures of bridges, furnaces and to do other demolition works, to sort the material resulting from the demolitions; to help masons and work with machines and equipment; to pour foundations for sidewalks, roads, pavements, roofs, etc.; to remove, stretch, seal pipes, valves, flaps and systems from inside the pipes, water tanks and water drainage systems; maintain cleanliness; immediately notify the administrators of any observed irregularity; in receipt of all materials, the need to ensure cleanliness, having the obligation to ensure their preservation and use in good conditions; to show readiness for dialogue, receptivity, calmness, tact in service relations; to respond to all requests from the administrator to fulfill tasks in accordance with the job description; to show special care in the handling and use of the materials and equipment he receives in order to avoid damage, destruction or loss; to be honest, loyal and disciplined, proving in all circumstances a civilized and correct attitude towards all the people with whom he comes into contact; to comply with the strict labor protection rules and P.S.I. from the objective where the service is carried out; the employee must use, according to the instructions for the use of dangerous substances, installations, machinery, machines, equipment and work equipment.; to grant help, as much as is reasonably possible, to any other employee who is in danger. the employee will carry out the activity in such a way as not to expose himself or the employees to the dangers of occupational accidents or illness, in accordance with the training and training in the field of labor protection received from his employer;