NASCRETE Ready Mixed Concrete · Revision: February 2026
NASCRETE – Volumetric Fresh Concrete
Product identifier: NASCRETE Fresh Mixed Concrete
Other means of identification / Trade name: Volumetric fresh concrete, Concrete, Ready Mix Concrete, Concrete Ready Mix, Portland Cement Concrete, Ready Mix Grout, Permeable Concrete, Shotcrete, Gunite, Colored Concrete, Flowable Fill, Roller-Compacted Concrete, Fiber Reinforced Concrete, Mud.
Identified uses: Fresh concrete supplied from volumetric mixers for use as a structural component in residential, commercial and civil construction.
Supplier details:
NASCRETE
8747 Weems Rd
Manassas VA 20110
Phone: (571) 602-4757
Website: www.nascrete.com
Emergency telephone number: (804) 549-3498 | Poison Help (US): 1-800-222-1222
Hazards apply primarily to wet, freshly mixed concrete during handling and placement, and to dust generated from hardened concrete when cutting, grinding or drilling.
Classification of mixture (GHS):
Hazard statements:
Precautionary statements – Prevention:
Precautionary statements – Response:
Other hazards: Overexposure to wet concrete can cause severe, potentially irreversible tissue damage (chemical burns) to skin, eyes and respiratory tract. Clothing wet with concrete can transmit the caustic effects to the skin. Hardened concrete, when cut, ground or drilled, can produce dust containing respirable crystalline silica.
Substance/mixture: Mixture (Portland cement, coarse aggregate, fine aggregate, water, admixtures).
| Component (Chemical identity / common name) | CAS No. | Typical Range (%) |
|---|---|---|
| Quartz (Aggregates / Crystalline Silica) | 14808-60-7 | 0.5–80 |
| Limestone (Aggregates) | 1317-65-3 | 0–80 |
| Hydraulic Cement (Portland Cement) | 65997-15-1 | 0–20 |
| Slag Cement (blast furnace slag cement) | 65996-69-2 | 0–15 |
| Fly Ash (Ashes, residues) | 68131-74-8 | 0–15 |
| Chemical admixtures | Mixture | < 1 |
May contain trace (< 0.05%) amounts of chromium (including hexavalent chromium), nickel, lead, mercury and other naturally occurring metals.
Inhalation: If excessive inhalation occurs, remove to fresh air. Dust from hardened product in throat and nasal passages should clear spontaneously. Get medical attention if irritation persists or develops later.
Skin contact: Wash with plenty of cool water and pH-neutral soap or mild skin detergent. Remove contaminated clothing and footwear. Seek medical attention for rash, burns, irritation, dermatitis or prolonged unprotected exposure to wet concrete.
Eye contact: Immediately flush eyes with plenty of water for at least 20 minutes, occasionally lifting upper and lower eyelids. Remove contact lenses if present and easy to do. Get immediate medical attention. Treat as chemical burns.
Ingestion: Rinse mouth with water. Do not induce vomiting unless directed by medical personnel. Get immediate medical attention or contact a poison center.
Most important symptoms/effects, acute and delayed: Severe skin and eye burns, possible blindness, respiratory irritation. Long-term inhalation of respirable crystalline silica can cause silicosis and increase the risk of lung cancer; symptoms may be delayed (shortness of breath, cough, sputum, weight loss, fever).
Notes to physician: Treat symptomatically, considering alkaline chemical burns and crystalline silica exposure. Contact a poison treatment specialist if large quantities have been ingested or inhaled.
Suitable extinguishing media: Use extinguishing media suitable for surrounding fire.
Unsuitable extinguishing media: None known.
Specific hazards arising from the product: No specific fire or explosion hazard.
Hazardous decomposition products: Carbon dioxide, carbon monoxide, sulfur oxides, metal oxides; respirable silica-containing dust may be generated if product is heated or mechanically disturbed.
Special protective equipment and precautions for fire-fighters: Wear appropriate protective equipment and self-contained breathing apparatus as needed.
For non-emergency personnel: Avoid contact with eyes and skin; wear gloves and suitable protective clothing. Avoid inhalation of dust from hardened concrete; use local exhaust or general ventilation.
For emergency responders: Use personal protective equipment as described in Section 8.
Environmental precautions: Wet, unhardened concrete should be recycled or allowed to harden before disposal. Do not wash concrete into sewers, drainage systems or natural water bodies.
Methods and materials for containment and cleanup: Contain spilled material. Allow wet concrete to harden and dispose of as nonhazardous solid waste in accordance with local regulations.
Precautions for safe handling: Use appropriate personal protective equipment (see Section 8). Avoid contact with eyes, skin and clothing. Do not breathe dust. Use only with adequate ventilation; wear a respirator if ventilation is inadequate. Wash hands and face before eating, drinking or smoking. Do not allow wet concrete inside boots, shoes or gloves. Remove wet or dusty clothing promptly.
Conditions for safe storage, including any incompatibilities: Components react with water to form calcium hydroxide, a strong alkali that can cause severe burns. Avoid skin and eye contact. Do not store near food, beverages or smoking materials. Avoid contact with strong acids and powerful oxidizing agents.
Occupational exposure limits (example values, check local regulations):
Engineering controls: Use local exhaust or general ventilation to keep airborne dust below exposure limits. Check emissions for compliance with environmental regulations.
Personal protective equipment:
Appearance: Solid, semi-fluid, plastic, flowable, granular paste; typically gray.
Odor: Odorless.
pH (pore solution): ~12+ (strongly alkaline).
Relative density: Normal weight concrete 1.7–3.0.
Flash point: Not flammable; not combustible.
Solubility: Reacts partially with water; otherwise not soluble as a mixture.
Other data: Melting point, boiling range, vapor pressure, vapor density, partition coefficient, auto-ignition temperature, decomposition temperature and viscosity: not applicable or not determined for this mixture.
Reactivity: Cementitious materials react slowly with water, forming hydrated compounds, releasing heat and producing strongly alkaline solutions.
Chemical stability: Stable under normal conditions.
Possibility of hazardous reactions: None expected under normal conditions of storage and use.
Conditions to avoid: Avoid contact with incompatible materials (strong acids, powerful oxidizing agents). Avoid uncontrolled contact with water before intended use.
Incompatible materials: Strong acids; powerful oxidizing agents (e.g. fluorine, chlorine trifluoride); hydrofluoric acid (reacts with silica to form silicon tetrafluoride gas).
Hazardous decomposition products: Respirable silica-containing dust particles may be generated if product is mechanically disturbed; high temperatures may convert quartz to other crystalline silica polymorphs.
Likely routes of exposure: Dermal contact, eye contact, inhalation, ingestion.
Symptoms:
Chronic effects: Long-term inhalation of respirable crystalline silica dust may cause silicosis (an incurable lung disease) and increase the risk of lung cancer. Possible association with autoimmune disorders (e.g. scleroderma) and kidney effects has been reported. Hexavalent chromium in cement can cause allergic contact dermatitis and skin ulcerations in sensitized individuals.
Carcinogenicity: Respirable crystalline silica (quartz) is classified as carcinogenic to humans (IARC Group 1; NTP known human carcinogen; ACGIH A2). Risk is primarily associated with long-term inhalation of respirable dust above exposure limits.
Ecotoxicity: Fresh unhardened concrete can raise pH if it enters water, which may be harmful to aquatic life. Hardened concrete is considered inert.
Persistence and degradability: No data available.
Bioaccumulative potential: No data available.
Mobility in soil: No data available.
Other adverse effects: None known beyond pH effects of fresh material.
Dispose of NASCRETE ready mixed concrete in accordance with local, regional and national regulations. Avoid generating waste; recycle or allow to harden where possible. Do not discharge process water to sewers unless compliant with all applicable requirements. Hardened concrete is typically managed as nonhazardous solid waste unless contaminated. The user is responsible for determining whether waste is hazardous under applicable regulations at the time of disposal.
UN number: Not regulated.
UN proper shipping name: Not applicable.
Transport hazard class(es): Not applicable.
Packing group: Not applicable.
Environmental hazards: None known.
Special precautions for user: Ensure persons transporting product know what to do in the event of an accident or spillage.
OSHA Hazard Communication: Considered a hazardous material; must be included in employer's hazard communication program.
CERCLA/SUPERFUND: Not listed as a CERCLA hazardous substance.
EPCRA SARA Title III: Hazard categories: health hazard; delayed health hazard.
EPCRA SARA Section 313: May contain trace quantities of reportable metals depending on raw materials.
RCRA: Hardened concrete is generally not hazardous by listing or characteristic unless contaminated. User must determine waste classification at time of disposal.
TSCA: Portland cement and crystalline silica are exempt from certain inventory reporting requirements in the US.
California Proposition 65 (if applicable): Respirable crystalline silica, hexavalent chromium, nickel compounds and other trace metals are known to the State of California to cause cancer and/or reproductive harm.
Revision date: February 2026
Version: NASCRETE SDS – Ready Mixed Concrete
Disclaimer: This Safety Data Sheet is based on currently available information and is intended to describe the product in terms of health, safety and environmental requirements. It should not be construed as guaranteeing specific properties. The user is responsible for ensuring suitability of this information for their particular use and for compliance with all applicable laws and regulations.