SDS

Martin Marietta Materials: SDS for Masonry Cement May 2015
SECTION III – COMPOSITION/INFORMATION ON INGREDIENTS
COMPONENT(S)
CHEMICAL NAME
Portland Cement
Gypsum
(1)
Limestone (Calcium Carbonate, CaCO
3
)
(2)
Quartz (crystalline silica, SiO
2
)
CAS REGISTRY NO
65997-15-1
13397-24-5
1317-65-3 (471-34-1)
14808-60-7
% by weight (approx)
55-70
2-3
30-50
<3
(1): The composition of gypsum may be up to 100% calcium sulfate (CaSO
4
)
(2): CAS No. of limestone and calcium carbonate provided
Product may contain flyash that typically is a mixture of multiple components and the composition is highly variable depending on the source. The primary
components of flyash are silicon oxide and calcium oxide, and other typical ingredients in smaller percentage by weight include oxides of metals such as
aluminum, iron and magnesium. May contain trace amounts of heavy metals.
SECTION IV – FIRST-AID MEASURES
INHALATION: If excessive inhalation occurs, remove to fresh air. Dust in throat and nasal passages should clear spontaneously.
Contact a physician if irritation persists or develops later.
EYES: Immediately flush eye(s) with plenty of clean water for at least 15 minutes, while holding the eyelid(s) open. Occasionally
lift the eyelid(s) to ensure thorough rinsing. Remove contact lenses, if present and easy to do, and continue rinsing. Beyond
flushing, do not attempt to remove material from the eye(s). Contact a physician if irritation persists or develops later.
SKIN: Rinse skin with soap and water after manually handling and wash contaminated clothing if there is potential for direct skin
contact. Contact a physician if irritation persists or develops later.
INGESTION: If swallowed, rinse mouth and do not induce vomiting. If gastrointestinal discomfort occurs, persists or develops
later, get medical attention.
SIGNS AND SYMPTOMS OF EXPOSURE: There are generally no signs or symptoms of exposure to respirable crystalline
silica. Often, chronic silicosis has no symptoms. The symptoms of chronic silicosis, if present, are shortness of breath, wheezing,
cough and sputum production. The symptoms of acute silicosis which can occur with exposures to very high concentrations of
respirable crystalline silica over a very short time period, sometimes as short as 6 months, are the same as those associated with
chronic silicosis; additionally, weight loss and fever may also occur. The symptoms of scleroderma, an autoimmune disease,
include thickening and stiffness of the skin, particularly in the fingers, shortness of breath, difficulty swallowing and joint
problems.
Direct skin and eye contact with dust generated may cause irritation by mechanical abrasion. Some components of the product are
also known to cause corrosive effects to skin, eyes, throat, mouth, stomach and mucous membranes. Wet product in the eye can
cause irritation and burning sensation, and may induce corneal edema (the victim may see colored rings or halos around lights).
Contact with wet material or contact with wet skin, can irritate the skin and may cause alkali burns. Repeated or prolonged contact
may cause dermatitis. Individuals may develop an allergic dermatitis following contact with this product. Ingestion of large
amounts may cause gastrointestinal irritation and blockage. Inhalation of dust may irritate nose, throat, mucous membranes and
respiratory tract by mechanical abrasion or corrosive/irritant action. Coughing, sneezing, chest pain, shortness of breath,
inflammation of mucous membrane, and flu-like fever may occur following exposures in excess of appropriate exposure limits.
Repeated excessive exposure may cause pneumoconiosis, such as silicosis and other respiratory effects.