Martin Marietta Physical Tester in Midlothian, Texas

Martin Marietta, an American company and a member of the S&P 500 index, is a leading supplier of aggregates and heavy building materials, with operations spanning 26 states, Canada and the Caribbean, and dedicated teams transforming more than 100 years of irreplaceable natural resources into the roads, sidewalks and foundations on which we live. Martin Marietta’s Magnesia Specialties business provides a full range of magnesium oxide, magnesium hydroxide and dolomitic lime products.

At Martin Marietta, we are always looking for the best and the brightest, for people who have the potential to be the Company's future leaders. We are building on our foundation of success by selecting the finest people and helping them realize their potential. When you decide to build your career at Martin Marietta, you'll know what it's like to be respected, challenged and rewarded.

Position Summary

Under supervision of Quality Control Supervisor, performs various tests, analyzes samples for cement production in Laboratory.


  • Combine & mix previous day's production samples into composite samples, test competitive samples, test previous month's composite samples, perform physical tests on CCRL samples, and perform physical tests on any complaints received

  • Analyze shipment samples for special cements

  • Measure cement silos for cement inventory

  • Enter test results into computer on daily basis

  • Inventory and order standard testing sands and admixtures

  • Break concrete cylinders

  • Cooperate with CCRL inspectors in verifying correct testing procedures & equipment specification conformance

  • Maintain equipment calibrabration records on all physical testing equipment

  • Other duties as assigned by Supervisor

Minimum Education and Experience

  • High school diploma or equivalent

  • A minimum of 60 hours of college-level work from an accredited college including a minimum of 8 hours of Chemistry or related science course(s)

  • Minimum of five (5) years experience in cement or related industry.

Knowledge, Skills and Abilities

  • Ability to read, write and verbally communicate in the English language

  • Ability to reason through operational issues as they arise and resolve or communicate to others

  • Must have comprehensive knowledge of plant operations as they affect quality of product

  • Must have general knowledge of calculators and computers

  • A high degree of manual dexterity and accuracy required

  • Preferred knowledge of all types of equipment used in the manufacturing of cement

  • Knowledge of hazards associated with areas of responsibility

  • Ability to perform basic math functions

  • Must have a basic understanding of the plant operations

  • Must have excellent work and safety record

  • Must understand Lockout/Tagout procedure and safety requirements

Physical Requirements

  • Must work rotating shift

  • Ability to lift and carry 50 pounds of weight up/ 2 flights of stairs 2 times per day

  • Must be able to work at heights of 50 ft. or more

  • Must be able lift and carry 20 pounds for up to 200 yards 12 times per day and up/down up to 3 flights of stairs each trip

  • Physical requirements also include visual acuity, speech and hearing, hand and eye coordination, standing, sitting, walking, climbing stairs, climbing on equipment, bending, stooping, crouching, kneeling, pushing, pulling, reaching, twisting, balancing, and squatting to perform the essential functions

  • Must be able to use proper Personal Protective Equipment as required

Working Condition

Must be able to work in all weather conditions (heat, cold, and rain). Must be able to work in noisy environment with noise levels up to 120 dba. Must be able to work in environments including vibration and mechanical and electrical hazards. Must be able to work any assigned shift. May have exposure to dust, cement, clay, gypsum, sand, diesel exhaust, lubricants, solvents, various fuels, etc. (See MSDS’s)

  • Medical

  • Prescription Drug

  • Dental

  • Vision

  • Health Care Reimbursement Account

  • Dependent Care Reimbursement Account

  • Wellness Programs

  • Employee Assistance Plan

  • Paid Holidays and Vacation

  • 401(k) with Company matching

  • Pension

  • Sickness and Accident – Short-Term Disability

  • Optional Long-Term Disability

  • Employee Life Insurance

  • Spouse & Dependent Life Insurance

  • Business Travel Accident Insurance

  • Direct Deposit Payroll

  • Educational/Tuition Assistance Plan

  • College Scholarship Program – for dependent children

  • Matching Gift Program

  • New Auto Purchase Discount Plans

We are an equal opportunity employer.

Qualified minorities, women, veterans and individuals with disabilities are encouraged to apply.

Requisition ID: 2016-2070

Division: Cement Division