What is ASTM C207?

ASTM C207, 2018 Edition, October 1, 2018 – Standard Specification for Hydrated Lime for Masonry Purposes. This specification covers four types of hydrated lime. Types N and S are suitable for use in mortar, in scratch and brown coats of cement plaster, for stucco, and for addition to portland-cement concrete.

What is Type S lime used for?

Type S lime is almost always dolomitic lime, hydrated under heat and pressure in an autoclave, and used in mortar, render, stucco, and plaster. Type S lime is not considered reliable as a pure binder in mortar due to high burning temperatures during production.

What is S type mortar?

Sakrete’s Mortar Mix Type S is a mason-grade pre-blended mixture of sand and masonry cement or sand, lime, and portland cement. Type S mortar can also be used as a stucco for scratch, brown, and finish coat applications. Features: High Strength >1,800 psi.

What is Masons hydrated lime used for?

Type S hydrated lime is a key ingredient in constructing durable, water-tight masonry. In particular, Type S hydrated lime improves mortar bond to masonry units (brick, concrete block and stone). Bond strength is important in design considerations in the prevention of cracking, water leakage, and efflorescence.

Is Type S lime the same as slaked lime?

Type N (normal) or Type S (special) limes are for use in cement-based mortars. They are a “high hydrate” or autoclave (pressure hydrate) form of hydrate. These products can be high-calcium, dolomitic, magnesian, or hydraulic. Lime Putty is slaked lime, or calcium hydroxide, in paste form.

Is Type S lime the same as calcium hydroxide?

Type S, or Special hydrated lime products, are a combination of calcium and magnesium hydroxides. Type SA, or Special Air-Entraining lime, is a type S hydrated lime containing an air-entraining additive. These products must entrain between 7% and 14% air when mixed with cement and sand in mortars.

What is the difference between hydrated lime and Type S lime?

Type S must meet a water retention value of 85%, while Type N hydrate lime must have a water retention value of 75%. No distinction is made based on the nature and source of limestone.

What kind of lime is used for odor removal?

What lime kills odors? AGRICULTURAL LIME is a very affordable and effective odor control agent. It can be sprinkled on any area where odor is a problem.

What type of lime is best for gardens?

What Does Lime Do for Soil? The two types of lime that gardeners should become familiar with are agricultural lime and dolomite lime. Both types of lime contain calcium, and dolomite lime also contains magnesium. Lime adds these two essential elements to the soil, but it is more commonly used to correct the soil pH.

What type of lime is used in mortar mix?

Hydrated lime
Hydrated lime is the type of lime most widely used as a component in mortars and renders. Hydrated lime, and quicklime (see below) are commonly referred to as ‘air lime’ products. This is because they do not react with the water in the mix to form a ‘set’.