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Cement-free concrete meets local building codes only when the authority having jurisdiction (AHJ)—usually the local building department—accepts the exact product and its proposed use for the project. Start by asking which code edition and local amendments apply, then confirm what evidence the official requires for that formulation, application, and site conditions. A supplier’s sustainability claim or a generic label such as “geopolymer” does not establish code approval.
In the United States, an alternative-material review may be available under a jurisdiction’s adopted International Building Code (IBC) or International Residential Code (IRC) framework. That is a review path, not an automatic pass: the licensed design professional and building official both have roles, and the adopted code and local decision control. This guide explains how to check the product, assemble the evidence, and get a decision before construction.
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What does “cement-free concrete” mean for code review?
“Cement-free concrete” is not one standardized product with one universal code status. It can describe different binder formulations, including low-carbon alternative cements activated with water or a manufacturer-supplied activator. The exact formulation matters: evidence for one product or mix does not automatically apply to another.
For a useful code inquiry, identify the product by manufacturer and product name, the binder and any activator, and the proposed concrete mixture. Also describe the actual work: for example, whether the concrete is structural or nonstructural, plain or reinforced, and whether it is intended for a foundation, slab, or another element. Those distinctions help the building official and design professional determine which requirements and evidence are relevant. The answer for a project cannot be settled without its location, product, building type, and intended use.
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Do not treat “alternative cement” as a shortcut around ordinary project requirements. The review must address the finished concrete and the conditions in which it will be used—not only a binder’s general properties or environmental attributes.
Who decides whether the concrete is acceptable?
The AHJ makes the local code-enforcement decision, while the licensed design professional must evaluate whether the material and its evidence are suitable for the design. The International Code Council’s discussion of ACI 318-19 says alternative materials require approval by both the licensed design professional and the building official; the local jurisdiction’s adopted code and amendments govern the actual project.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteACI 318-19 permits alternative cements but does not provide complete design and performance specifications for them. That means a reference to ACI 318-19, an IBC or IRC model provision, or a supplier’s statement that a product is “code compliant” is not, by itself, the project decision. Ask the department which edition it has adopted, what local changes apply, and how it wants the proposed material reviewed. The ICC explanation of ACI 318-19 and alternative materials is useful background, but it does not replace the AHJ’s determination.
If the project is outside the United States, do not assume that this IBC/IRC pathway applies. Other jurisdictions may use different standards or technical specifications. A 2023 review discusses a distinct Australian technical specification for geopolymer and alkali-activated concrete, illustrating why the local regulator’s current requirements must be checked rather than transferred from U.S. guidance. See the review of codes and constructability for geopolymers for context.
What should I ask the building department first?
Before paying for tests or completing a permit package, ask the building department how it wants to review this specific product and application. A short, precise inquiry is more useful than asking whether “cement-free concrete” is allowed in general.
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- Confirm the jurisdiction and project basis. Identify the address, building type, proposed work, and whether a permit is required. Ask which building code edition and local amendments apply to the project.
- Describe the material precisely. Provide the manufacturer and product name, binder and activator description, intended mixture, and supplier contact. Ask what additional product identification the department needs.
- State the intended use. Say whether the element is structural or nonstructural, reinforced or plain, and identify the relevant element and exposure conditions. Flag any fire-resistance requirement or other project-specific condition.
- Ask which review route and submittals are acceptable. Ask whether an ICC-ES evaluation report is available or required, what test data and design documents must accompany it, and whether peer review, additional testing, quality assurance, or special inspection is expected.
- Request a written response or documented submittal instructions. Clarify that you need the official’s requirements for this project, not just a general statement about alternative materials.
Keep the department’s response with the project records. If the official requires particular analysis or testing, have the design professional and supplier address those requirements before submitting or specifying the material.
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Request the current report for the exact product and compare its scope and conditions with the project. An ICC-ES evaluation report contains findings about a particular product or method and can support an enforcing agency’s review, but it is not a substitute for local approval. ICC-ES explains the role and limits of its reports in its evaluation report FAQs.
Read the report itself rather than relying on a product page or a report number mentioned in marketing material. Check the following:
- Identity and status: Does the report name the exact product and formulation under consideration? Is the report current, and are its referenced criteria and code editions applicable to the project?
- Code editions: Does it cover the code edition adopted by the jurisdiction, or will the official require a separate evaluation? A report referencing an edition different from the local one should be discussed with the AHJ rather than assumed to transfer automatically.
- Permitted use: Does the report cover the proposed structural or nonstructural use and the relevant type of construction? Check whether it addresses plain and reinforced concrete as applicable.
- Mix and installation limits: Compare the specified proportions, activator, batching controls, placement, curing, and other instructions with the proposed work. A change in formulation or a condition outside the listed limits may put the project beyond the report’s scope.
- Performance and exposure: Check what the report says about design compressive strength, other engineering properties, durability, and the exposures relevant to the end use. Confirm whether reinforcement compatibility and fire resistance are covered when needed.
- Inspection and exclusions: Identify required quality controls, special inspections, or other conditions, and read exclusions carefully. A report’s limitations are part of the approval evidence, not optional footnotes.
ICC-ES published a proposed May 2026 revision of AC529, an acceptance criterion for low-carbon alternative cements activated by water or a manufacturer-supplied proprietary activator. The proposal references the 2024, 2021, 2018, and 2015 IBC/IRC editions and describes evaluation of cementitious properties and resulting concrete. It says resulting concrete may be structural or nonstructural, plain or reinforced only when it meets the design compressive strength, other specified engineering properties, and durability requirements for its end use.
That document is marked “Proposed May 2026.” It is not proof that a particular product has an evaluation report, that a report remains current, or that the project will be accepted. ICC also announced that its board resolved on April 18, 2026, to sunset ICC 1155 and the associated committee; the announcement was published on May 13, 2026. Since criteria and report status can change, confirm the current status with ICC-ES and the AHJ rather than relying on the proposed criteria or a dated announcement alone. The ICC announcement describes the sunset decision.
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What evidence should the supplier and engineer provide?
Build the submittal around the concrete mixture, intended application, and project conditions. A binder-property sheet alone is not enough to show that the finished concrete will satisfy the design and durability needs of a particular element.
The ICC discussion of ACI 318-19 identifies considerations that can include thermal cracking, strength, volume stability, elastic properties, creep, permeability, corrosion of metals, and aggregate reactions. It also discusses structural performance, fire resistance, batching, transport, placement, curing, workability, weather, finishing, and compatibility with admixtures. Which properties and tests matter depends on the adopted code, design, use, exposure, and review requirements; there is no single checklist of tests that guarantees acceptance.
AC529’s proposed criteria include mechanical and durability evaluation, with applicable tests including strength, shrinkage, freezing and thawing, and other properties. The proposal calls for each formulation to be tested separately and places responsibility on the evaluation to demonstrate compliance with end-use requirements. Ask the supplier and design professional to identify the actual test methods, results, and acceptance thresholds required by the product report and AHJ. A general test result, or the fact that a property is mentioned in an acceptance criterion, does not by itself establish approval.
A project submittal may need the following, subject to the building official’s instructions:
| Submittal item | What it should establish |
|---|---|
| Code basis | The locally adopted code edition, applicable amendments, and alternative-material review provision or process identified by the AHJ. |
| Product and mixture details | Exact product and formulation, mixture proportions, batch controls, product identification, and supplier documentation. |
| Evaluation evidence | A current product-specific evaluation report, if available, or another engineering evaluation the AHJ accepts, including its limits and conditions. |
| Test data and analysis | Evidence for strength, durability under actual exposure, reinforcement compatibility, fire resistance where relevant, and other project-specific performance needs. |
| Design documents | Structural calculations and sealed design documents when required by the official or applicable code. |
| Construction and inspection plan | Batching, transport, placement, curing, quality assurance, inspection, and any required special-inspection information. |
This is a planning checklist, not a universal legal submittal list. The department may ask for additional material or may determine that particular evidence is not necessary. Get its requirements before assuming a package is complete.
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How does the approval process work from inquiry to construction?
Use a staged process so the product, evidence, design, and local review stay aligned. Do not rely on the material for permitted construction until the AHJ has made its decision.
- Establish the code and project conditions. Identify the jurisdiction, adopted code edition and amendments, project type, proposed element, structural role, reinforcement, fire requirements, and relevant exposure conditions.
- Ask the AHJ for its review path. Send a concise description of the exact concrete product and intended use. Ask what alternative-material provision or process applies, which documents it expects, and whether it anticipates peer review, further testing, or special inspection.
- Get the supplier’s complete evidence. Request the current evaluation report, if one exists, the underlying test data, mixture and batch information, and installation and curing instructions. Confirm that the product identity matches the proposed material.
- Check the evidence against the project. Have the licensed design professional compare the report’s scope and limits with the design, code edition, exposure, reinforcement, fire needs, and construction conditions. List every gap rather than assuming an adjacent use or similar formulation is covered.
- Resolve gaps through an accepted route. Work with the supplier and engineer to provide additional tests or analysis if required. Confirm with the official that the proposed evidence and methods will be acceptable before relying on them.
- Submit and wait for the decision. Provide the package in the format requested. Proceed only after the AHJ has approved the material for the proposed use and the project’s applicable permit or construction requirements are satisfied.
- Build within the approved conditions. Follow the accepted mix, installation, curing, quality-control, and inspection conditions. If the product, formulation, application, or site conditions change, ask the AHJ and design professional whether the approval still applies.
The key practical distinction is between evidence that helps make a case and a decision that authorizes a particular project. A report or test program can inform the review; the building official’s determination and the design professional’s acceptance still have to address the actual work.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What common mistakes can delay or derail approval?
Most avoidable problems come from treating broad product claims as project-specific evidence. Check these issues before submitting:
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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match- Relying on the phrase “cement-free.” Ask for the exact formulation and product identification. A broad category name cannot establish which properties or tests apply.
- Assuming a model code is locally adopted. A model-code provision is only a starting point; confirm the edition and amendments the jurisdiction enforces.
- Submitting a report without checking its scope. A product-specific report may exclude the proposed application, edition, exposure, reinforcement, or conditions. Compare each limit with the project.
- Providing binder data but not mixture evidence. The review concerns the resulting concrete and its end use. Ask how the submittal addresses strength, durability, construction, and other relevant performance needs.
- Assuming proposed criteria equal approval. A proposed acceptance criterion is not the same thing as a current product report or a local approval. Verify both the criteria’s and the report’s current status.
- Ignoring construction requirements. Batching, transport, workability, placement, curing, weather, finishing, and admixture compatibility may affect whether the approved material can be placed as designed.
- Starting before the decision. A supplier’s assurance or a pending review is not the AHJ’s project approval. Obtain the decision before specifying or relying on the material for permitted work.
If the official identifies a gap, ask for the missing item in specific terms: the property to demonstrate, the relevant project condition, the acceptable type of test or analysis, and who must prepare or seal it. That turns a general objection into a defined next step.
How should I compare two alternative-cement products?
There is no universal ranking: the right option is the one whose current evidence and permitted uses fit the local code and the project. Compare the products against the same project requirements, not against broad sustainability language.
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- Exact binder and activator formulation, including whether the evidence covers the mixture being proposed.
- Current evaluation-report status and code editions covered.
- Allowed structural and nonstructural uses; plain or reinforced applications.
- Test data relevant to required strength and the project’s exposure durability.
- Fire-resistance and reinforcement provisions where relevant.
- Placement, curing, batching, quality-control, and installation limits.
- Required inspections, exclusions, and whether the project falls within the report’s stated scope.
Take the comparison to the design professional and AHJ. A product with a broader report is not necessarily suitable for a particular element, and a report that appears relevant still needs review against the adopted local code and project conditions.
Frequently Asked Questions
Does geopolymer concrete automatically meet building codes?
No. “Geopolymer” describes a broad material family, not a blanket code approval. The exact formulation, intended application, local requirements, and AHJ decision still matter.
Can I use an ICC-ES report instead of getting local approval?
An evaluation report is evidence about a particular product or method and can support an enforcing agency’s review; it does not replace the AHJ’s project decision. Check with the building department about the report’s applicability and any additional submittal requirements.
What if my supplier says the concrete is already code compliant?
Ask for the current product-specific report, test data, and written installation limits behind that statement. Then have the design professional and building official determine whether that evidence covers your project and locally adopted code.
Does the answer change for a small residential project?
The applicable code framework and local amendments depend on the jurisdiction and building type, so a residential project should not assume the same route or requirements as another project. Ask the department which provisions and submittals it applies to your specific work.
