MASONRY-6
cement-lime mortar
A cement mortar to which lime is added to increase its plasticity and water retentivity.
lean mix
A concrete or mortar mix that is difficult to work or spread because of a shortness of cement or lime.
fat mix
A concrete or mortar mix that is easy to work or spread because of relatively high cement or lime content. Also called RICH MIX.
reinforced grouted masonry
A masonry wall constructed with horizontal and vertical steel reinforcement fully embedded in grout for increased resistance to buckling and lateral wind and seismic loads.
type N mortar
A medium strength mortar recommended for general use in exposed masonry above grade where high compressive and lateral strength are not required.
lime mortar
A mixture of lime, sand and water that is rarely used because of its slow rate of hardening and low compressive strength.
epoxy mortar
A mortar consisting of epoxy resin, a catalyst, and fine aggregate.
nonstaining mortar
A mortar having a low free alkali content to minimize efflorescence or the staining adjacent masonry by the migration of soluble materials.
cement mortar
A mortar made by mixing Portland cement, sand and water.
masonry cement
A proprietary mix of portland cement and other ingredients, such as hydrated lime, plasticizers, air-entraining agents and gypsum requiring only the addition of sand and water to make cement mortar.
high-lift grouting
A technique for grouting masonry wall constructed at a time in lifts not exceeding 6feet or 1.8m
type K mortar
A very low strength mortar suitable only for use in interior non load bearing walls where permitted by the building code.
grouted masonry
A wall constructed of brick or concrete brick units with all interior joints being filled with grout as the work progresses.
hollow unit masonry
A wall constructed of hollow masonry units laid and set with mortar, with adjacent wythes bonded by masonry headers or metal ties.
type M mortar
High strength mortar recommended for use in reinforced masonry below grade or in contact with the earth, as foundation and retaining walls subject to high lateral or compressive loads; compressive strength is 2500 psi
reinforced hollow unit masonry
Hollow unit masonry having certain cells continuously filled with concrete or grout, in which reinforcing steel is embedded for increased resistance to buckling and lateral wind and seismic loads.
type O mortar
Low-strength mortar suitable for use in interior non-load bearing walls and partitions
grout pour
The total height of masonry to be filled with grout before the erection of additional masonry consisting of one or more grout lifts.
green mortar
pertaining to concrete or mortar that is freshly set but not completely hardened
plasticizer
An admixture for making a concrete or mortar mix workable with little water.
grout lift
An increment of grout height within a total grout pour.
cleanout
Any of a series of temporary openings at the bottom of a masonry wall large enough to permit the removal of debris or obstructions from a cavity or cell prior to grouting.
joint reinforcement
Any steel reinforcement placed in a bed joint to increase the resistance of a masonry wall to cracking.
type S mortar
Medium-high strength mortar for use in masonry where bond and lateral strength are more important than compressive strength; compressive strength is 1800 psi
lime
Used chiefly in mortars, plasters, and cements, in bleaching powder, and in the manufacture of steel, paper, glass, and various chemicals of calcium.
grout
a fluid cement mortar that will flow easily without segregation of the ingredients, used to fill narrow cavities in masonry and consolidate the adjoning materials into a solid mass.
high-lift grouting
a method of building reinforced grouting masonry walls in which a large area of the wall is set and then the grout is placed, usually by pumping
mortar
a plastic mixture of lime or cement, or combination of both with sand and water, used as a bonding agent in masonry construction.
hydrated lime
a soft, crystalline powder obtained by the action of water on lime and used in making mortar, plaster, and cement.
low-lift masonry
a technique for grouting a wall in lifts not exceeding 6 times the width of the grout space or a maximum of 8 inches (203 mm) as the wall is built
lime
a white or grayish-white, odorless, lumpy, very slightly water-soluble solid, CaO, that when combined with water forms calcium hydroxide (slaked lime) obtained from calcium carbonate, limestone, or oyster shells
bond
adhesion between mortar or grout and the masonry units or steel reinforcement being cemented.
hydrated lime
also called calcium hydroxide or slaked lime