Specifications
CSI sections, ASTM standards, and submittals — for every system we install.
A working reference for design teams. The deep dive below is for CSI 09 66 23 — Resinous Matrix Terrazzo, our flagship system. Specs for cementitious terrazzo, precast, polished concrete, industrial coatings, and restoration follow at the bottom of the page.
Part 2 — Products
System composition, bottom to top.
| Layer | Spec detail |
|---|---|
| Substrate | Structural concrete slab, min. 28-day cure, profiled to ICRI CSP-3/4 |
| Moisture mitigation (when required) | 100%-solids epoxy MVB, applied per ASTM F3010 |
| Primer | Manufacturer-matched 100%-solids epoxy primer |
| Divider strips | Zinc, brass, or aluminum L-angle, 1/4" depth × 1/8" face |
| Matrix | Pigmented 100%-solids epoxy resin with specified aggregate package |
| Finish thickness | 3/8" nominal poured, ground, and polished |
| Sealer | Penetrating, breathable, slip-resistant — manufacturer-approved |
Part 1 — References
ASTM & industry standards we test to.
ASTM C1028 / ANSI A326.3
Static and dynamic coefficient of friction
ASTM C501
Abrasion resistance (Taber)
ASTM C531
Linear shrinkage and coefficient of thermal expansion
ASTM C579
Compressive strength of chemical-resistant mortars
ASTM F1869
Moisture vapor emission rate (CaCl)
ASTM F2170
In-situ relative humidity testing
ASTM F3010
Two-component resin-based moisture mitigation systems
NTMA Technical Bulletins
National Terrazzo & Mosaic Association industry standards
Part 1.5 — Submittals
Submittal package, delivered in 14 days.
Every item below ships in one formatted PDF, indexed to your submittal log. Editable Word format available for the spec section itself.
- Manufacturer's product data sheets for resin, primer, MVB, and sealer
- Safety Data Sheets (SDS) for all installed products
- Shop drawings — divider strip layout, control joint locations, transitions
- Color samples — 6" × 6" poured, ground, and polished to project finish
- Aggregate samples and final aggregate schedule
- Concrete moisture test plan and results (ASTM F2170 / F1869)
- Installer qualifications — NTMA contractor membership in good standing
- Manufacturer's installation instructions and warranty
- Maintenance instructions for owner closeout
- LEED documentation (EPDs, HPDs, Declare labels, regional content)
Part 3 — Execution
QA/QC built into every pour.
The quality gates below appear in our standard spec language and in every install. They're how we close out projects with zero punch on the terrazzo scope.
- Pre-installation mock-up — minimum 4' × 4', approved by architect and owner
- Substrate moisture testing at three locations per 1,000 sq ft before primer
- Tape-pull adhesion test on prepped substrate before priming
- Daily field reports with temperature, humidity, batch numbers, and pour photos
- Manufacturer field rep visit at job start when project exceeds 5,000 sq ft
- Final acceptance walk with owner before floor protection is installed
Other systems we spec
CSI sections and standards for every floor we install.
Each system has its own spec section, its own ASTM references, and its own submittal expectations. The cards below summarize what your spec writer needs to know; the linked service page covers the full system.
CSI 09 66 13
Cementitious Terrazzo
Portland Cement Terrazzo Flooring
Sand-cushion, bonded, monolithic, and polyacrylate-modified variants. Thicker section (1/2"–3") and longer cure than epoxy.
Key standards
- NTMA Technical Bulletins
- ASTM C33 (aggregates)
- ASTM C150 (Portland cement)
- ASTM C1028 (slip resistance)
CSI 09 66 16
Precast Terrazzo
Terrazzo Tile Flooring (precast units)
Shop-cast treads, risers, bases, wall panels, and logo medallions. Installed with epoxy or thinset depending on substrate.
Key standards
- NTMA Precast Standards
- ASTM C241 (abrasion)
- ASTM C580 (flexural)
- ANSI A137.1 (tile)
CSI 03 35 43
Polished Concrete
Polished Concrete Finishing
Specified by CPAA Class (1–4 aggregate exposure) and gloss level (1–4). Densifier and stain-guard are spec line items.
Key standards
- ACI 310R
- CPAA Polished Concrete Specifier Guide
- ASTM E430 (gloss)
- ASTM C1028 (slip)
CSI 09 67 23
Industrial Coatings
Resinous Flooring
High-build epoxy, polyaspartic, novolac, urethane mortar, MMA, and ESD systems. Spec must call out thickness, topcoat, and slip profile.
Key standards
- ASTM C413 (chemical resistance)
- ASTM D4060 (Taber abrasion)
- ASTM D2240 (Shore hardness)
- ASTM F3010 (moisture mitigation)
CSI 09 01 66
Restoration
Maintenance of Terrazzo Flooring
Diamond grinding, crack repair, re-grouting, and re-polishing of existing terrazzo. Often paired with selective replacement.
Key standards
- NTMA Restoration Bulletin
- ASTM C779 (abrasion of in-place finishes)
Specifying a project? We'll send the Word file.
Editable CSI 09 66 23 section, divider details, and a project-specific aggregate schedule. Same-day turnaround for design teams already on a bid clock.
Request Editable Spec