Concrete Laboratory Technician

Description

Job Summary: A professional responsible for conducting tests and quality control on concrete and its constituent materials, ensuring compliance with technical standards and result reliability. Key Highlights: 1. Conduct fresh concrete and specimen testing in accordance with standards. 2. Control the traceability and quality of concrete constituent materials. 3. Prepare technical reports and communicate non-conformities. **POSITION** Concrete Laboratory Technician **RESPONSIBILITIES AND DUTIES** · Perform fresh concrete tests: slump, temperature, specific mass, and entrained air (where applicable). · Mold and store specimens in accordance with technical standards. · Conduct axial compression tests on specimens using hydraulic presses at specified ages (e.g., 7, 28 days). · Collect concrete samples from construction sites or production plants, ensuring representativeness. · Comply with sampling procedures defined by ABNT standards, especially NBR 7212 and NBR 5738\. · Accurately complete sampling forms, control logs, spreadsheets, or digital systems. · Prepare technical reports summarizing test results. · Control specimen traceability (identification, curing, and breaking). · Verify and record the quality of concrete constituent materials (cement, aggregates, admixtures, and water). · Conduct material testing when required, such as aggregate gradation and moisture content. · Maintain laboratory equipment and testing instruments in an organized, clean, and well-preserved condition. · Request or perform equipment calibration according to the scheduled plan. · Manage inventory of molds, labels, PPE, and laboratory consumables. · Follow ABNT technical standards (e.g., NBR 5738, NBR 5739, NBR 7212, among others). · Apply good laboratory practices and ensure result reliability. · Participate in training and updates as needed. · Report identified non-conformities or deviations to the technical team and production department. · Support technical failure investigations or concrete strength issues. · Assist in validating new concrete mix designs under engineering guidance. · Perform Abrams curves, concrete mix analysis, and supplier analysis and qualification; · Site visits are required. **Requirements and Qualifications:** Completed high school education; Basic computer skills; Experience with ready-mix concrete; Prior experience in a concrete laboratory (preferred); Technical course in construction, civil engineering, or related fields (preferred); **We Offer:** Base salary: R$ 2\.177,00 Production bonus after probation period: up to R$ 500,00 (variable) Meal allowance: R$ 30,00 per working day (average R$ 600,00\). Overtime pay: average R$ 300,00; Internal training program with opportunities for internal career growth; Employees may bring their own meals; company provides a cafeteria with microwave ovens. Free parking; Opportunity for overtime work, subject to high demand. **Average monthly compensation, including meal allowance: R$ 3\.200,00 to R$ 3\.577,00** **Working Hours:** Monday to Thursday: 7:00 AM to 5:00 PM; Friday: 7:00 AM to 4:00 PM. Average of 02 overtime hours per day, plus Saturdays when production is scheduled. Employment Type: Permanent CLT contract Compensation: R$3\.200,00 \- R$3\.577,00 per month Benefits: * Free parking * Meal allowance Work Location: On-site