South Carolina Concrete

South Carolina Concrete Contractor Exam: Complete 2026 Study Guide

If you're working toward a South Carolina concrete contractor license, you already know this credential opens doors — structural foundations, flatwork, forming, reinforcement work, and more. The South Carolina concrete contractor exam is the gateway to that license, and passing it takes focused preparation. This guide covers everything you need: exam format, topic breakdowns, sample questions, approved study materials, and practical strategies to help you pass on the first try.

Exam Overview: What to Expect on the SC Concrete License Test

The South Carolina Concrete exam is administered by PSI and consists of 50 scored questions. You have 180 minutes (3 hours) to complete it. A passing score is 70%, meaning you need to answer at least 35 of the 50 questions correctly.

One detail worth noting: the official exam bulletin indicates that a small number of experimental (unscored) questions may be included in your session. These do not count toward or against your score — but you won't know which ones they are, so answer every question as if it matters.

The exam is open book. You may bring the approved reference materials, which may be highlighted, tabbed, and indexed — but no loose papers, sticky notes, or additional annotations beyond that. More on the allowed references below.

This exam covers concrete-specific technical knowledge. It does not test general contracting or highway paving work — a SC Concrete license specifically authorizes forming, placing, structural and flatwork operations, and related site preparation. Roadways and parking lots fall under a separate classification.

Topics Covered on the South Carolina Concrete Contractor Exam

The exam tests five topic areas. Here's how they break down by weight, from heaviest to lightest:

Concrete (15 items — 30% of the exam)
The single largest section. Expect questions on mixture design, water-cementitious ratios, admixtures, slump, air entrainment, strength testing, and how to read and apply concrete specifications. Foundations, subgrade preparation, reinforcement placement within structures, joints, and embedments are all fair game.

Concrete – Formwork (12 items — 24%)
Formwork is the second-largest topic. This covers lateral concrete pressure calculations, formwork loads, material selection (lumber, plywood, aluminum, steel, proprietary systems), form design for slabs, walls, beams, and columns, plus shoring, reshoring, backshoring, and removal criteria.

Concrete – Reinforcement (10 items — 20%)
Rebar types, grades, identification markings, cover requirements, splice types and lengths, placing tolerances per ACI 117, and welded wire reinforcement are all tested here.

Concrete – Earthwork (7 items — 14%)
Soil types, bearing capacity, geotechnical investigations, compaction methods, excavation near existing foundations, underpinning, and groundwater/dewatering methods.

Safety (6 items — 12%)
PPE requirements, fall protection for formwork and rebar, formwork and shoring safety, lockout/tagout procedures, and excavation cave-in protection.

When you sit down to study, weight your time accordingly — Concrete and Formwork together make up more than half the exam.

Sample Questions from the SC Commercial Concrete Exam

Here are five sample questions representative of what you'll encounter. Study them carefully — but we're not going to tell you the answers here. Try our free practice exam to test yourself and see how you do.

Question 1 — Concrete – Reinforcement (Medium)

What is the minimum bend diameter for #10 (metric #32) reinforcing bars as specified in the ACI Building Code?
- A) 8 bar diameters
- B) 10 bar diameters
- C) 6 bar diameters
- D) 4 bar diameters

Question 2 — Concrete (Hard)

On a commercial project, concrete test cylinders were left in the hot sun during their first day of jobsite storage. What is the potential impact on 28-day compressive strength results?
- A) Strength is unaffected if lab curing is proper
- B) Strength may increase by up to 5 percent
- C) Strength may be reduced by up to 10 percent
- D) Strength may be reduced by up to 25 percent

Question 3 — Concrete (Medium)

A commercial concrete contractor is placing a slab-on-ground that will support hard-wheeled forklift traffic. The contraction joints will be filled with a semi-rigid filler. Which joint-forming method is recommended for these conditions?
- A) Forming with a trowel only
- B) Saw-cutting the joint
- C) Inserting a preformed strip
- D) Tooling with a groover

Question 4 — Concrete – Formwork (Medium)

You are a commercial concrete contractor building architectural concrete wall forms. ACI 303R recommends that cooling of architectural concrete surfaces after formwork removal be limited to a gradual temperature drop not exceeding what amount in 24 hours?
- A) 30°F
- B) 20°F
- C) 40°F
- D) 50°F

Question 5 — Concrete – Formwork (Medium)

For wood compression members used as formwork shores, what is the maximum allowable slenderness ratio (ℓ/d)?
- A) 50
- B) 30
- C) 75
- D) 200

Questions 1 and 4 test specific code values you'll need to locate quickly in your references. Questions 2 and 3 require applied judgment — knowing not just the rule, but what happens when field conditions deviate from it. Question 5 is a design-value lookup that rewards good tabbing.

What Types of Questions to Expect — By Topic

Our practice question bank covers all five exam topics, with 267 questions total. Here's what each area tests:

• Safety (38 practice questions): PPE selection for concrete operations, fall protection systems on formwork and rebar, shoring safety procedures, lockout/tagout for concrete equipment, and excavation cave-in hazard recognition.

• Concrete – Earthwork (47 practice questions): Soil classification and bearing capacity, geotechnical investigation methods, moisture-density relationships and compaction testing, safe excavation near existing footings, and dewatering system selection.

• Concrete (73 practice questions): The largest section — mixture design calculations, water-cement ratio effects, admixture selection, slump testing, cylinder curing and acceptance, reading prescriptive and performance specs, footing and foundation wall construction, reinforcement placement and cover in structures, and joint and embedment detailing.

• Concrete – Reinforcement (50 practice questions): Identifying bar sizes and grades from physical markings, cover requirements in various exposure conditions, lap splice lengths, mechanical and welded splice requirements, placing tolerances per ACI 117, and the properties of WWR and fiber-reinforced concrete.

• Concrete – Formwork (59 practice questions): Lateral pressure calculations using ACI 347R equations, effects of placement rate and temperature on pressure, lumber and plywood form design, span table application, column and wall form sizing, shoring load distribution in multi-story work, and removal criteria.

Start with the free exam (10 questions) to get a feel for the format, then move to the full practice exam — which mirrors the real test's 50-question structure, 3-hour time limit, and topic breakdown — when you're ready for serious prep.

Required Study Materials for the SC Concrete License Test

This is an open-book exam, so your references are your lifeline. You need to own all of the approved books — and know them well enough to find answers fast.

• OSHA 29 CFR 1926 — The federal OSHA standards for construction. Required for the Safety section. Tabs for fall protection, excavation, and lockout/tagout will save you significant time.

• SP-4 Formwork for Concrete, 8th Edition — The authoritative reference for the Formwork section. ACI 347R lateral pressure equations, form design tables, and shoring requirements all live here.

• The Contractor's Guide to Quality Concrete Construction, 4th Edition — Covers mixture design, placing, curing, testing, and specifications. Essential for the Concrete topic area.

• Placing Reinforcing Bars, Recommended Practices, 10th Edition — The field reference for bar placement, splicing, cover, and tolerances. Required for the Reinforcement section.

• South Carolina Building Code 2021 — The SC-modified IBC. You'll reference this for structural and code compliance questions.

• SC 811 Excavator Manual — Required for earthwork and excavation safety questions. The 2024 edition is available as a free download.

All of these may be highlighted, underlined, and tabbed. Take the time to do that before exam day — a well-prepared book is worth more than an extra hour of reading.

Study Tips for the South Carolina Concrete Contractor Practice Exam

Tab your books like your license depends on it — because it does. On an open-book exam, the winners aren't the smartest people in the room; they're the fastest at finding answers. Work through each reference, highlight key tables and equations, and build a reliable index system. Being able to land on any topic in seconds is the skill that separates a pass from a fail.

Work the exam in two passes. Answer the questions you know on the first pass and mark the ones you're unsure about. Return to flagged questions after you've cleared the easy points. Don't burn five minutes on one question while a dozen answered ones are waiting — the clock doesn't pause.

Give yourself three to six weeks of structured prep. Use the official exam bulletin as your study roadmap. Focus your energy on the Concrete and Formwork sections first — together they account for over half the exam. Target 80% or better on practice runs so you have a comfortable margin on test day.

Practice under timed conditions. Exam-clock anxiety is real, and the best way to beat it is repetition. Timed practice sessions train you to pace steadily and move on when needed, so the format feels routine by the time you sit for the real thing.

Frequently Asked Questions

How much does the South Carolina Concrete contractor exam cost?
The exam fee is $78. You must submit a registration form and payment for each examination attempt.

How many questions are on the SC concrete license test and how long do I have?
The exam has 50 scored questions and a 3-hour time limit. A small number of experimental questions (approximately 10% of the question count) may also be included in your session, but these are not scored.

What is the passing score?
You need to answer 35 out of 50 questions correctly (70%) to pass.

What exams do I need to pass to get a South Carolina Concrete contractor license?
Two exams are required: the Business Management and Law for Contractors examination and the Concrete examination. You must pass both.

How do I register for the exam?
You can register through PSI at the exam registration page — online registration is available 24 hours a day and is the fastest option. You can also register by phone at (855) 340-3701 (Monday–Friday 7:30 am–10:00 pm ET, Saturday–Sunday 9:00 am–5:30 pm ET), or by fax or mail.

How many times can I take the exam if I fail?
You may take the Concrete exam up to 2 times within a 12-month period. After that, you may only retake it once every six months. If you pass, you cannot retake the same exam.

Is the South Carolina Concrete exam open book?
Yes. You may bring the approved reference books, which may be highlighted, underlined, and indexed — but no loose papers or additional annotations are permitted.

What reference books are allowed?
The approved references are: the 2021 SC Building Code (or 2018 edition); OSHA 29 CFR Part 1926; SP-4 Formwork for Concrete, 8th Edition; The Contractor's Guide to Quality Concrete Construction, 3rd Edition; Placing Reinforcing Bars, 10th Edition; and the SC 811 Excavator Manual (latest edition). All links are provided in the Study Materials section above.

What ID do I need to bring?
One valid, non-expired government-issued photo ID — a driver's license, state ID, U.S. passport, military ID, alien registration card, or Canadian government ID. The name must match your registration exactly.

Can I use a calculator?
Yes — non-programmable, silent, battery-operated calculators without a tape printer or alphabetic keyboard are permitted.

Ready to Pass the South Carolina Concrete Contractor Exam?

You now have the complete picture: what's tested, how it's weighted, which books to bring, and how to prepare efficiently. The South Carolina concrete contractor exam is challenging, but it's very passable with the right preparation and well-tabbed references.

Start today by taking our free practice exam — 10 questions, no account required. When you're ready to go deeper, the full practice exam mirrors the real test's 50-question format with detailed score breakdowns by topic so you know exactly where to focus. Check the state licensing website for current licensing requirements, and review the official exam bulletin before you register. Good luck — your license is within reach.