CE 264 Engr.Rhodora A.Bustamante Class: Mortars and Plasters

A material used to bind masonry units together, often made of cement, sand, and lime.

The ratio of cement to sand in a high-quality mortar mix.

Hydrated lime is added to mortar to improve its workability and strength.

A mortar mix with less sand, for better strength in areas like floors, where it will withstand more wear.

Mortar made with fine sand needs more cement for the same strength, compared to mortar with coarse sand.

Larger quantities of mortar are often mixed using a mechanical mixer for efficiency and consistency.

The most common type of brick used in construction, with a simple appearance.

Bricks with a smooth, glazed surface, offering a variety of finishes.

A type of brick designed to withstand high temperatures, commonly used for fireplaces and furnaces.

A bricklaying pattern where bricks are laid at a diagonal angle, resembling fish bones.

A common bricklaying pattern with five stretcher courses followed by a header course.

Bricks used on external surfaces, providing specific aesthetic or functional characteristics.

A plaster used to improve the adhesion of interior finishes onto smooth concrete walls or ceilings.

A lightweight gypsum plaster ideal for applications where weight is a concern and for fireproofing.

A plaster finish composed of Keene’s cement, lime putty, and fine white sand.

A type of cement used to create a hard finish for gypsum plaster in interior applications.

A type of plaster specifically designed for decorative plasterwork and castings.

A plaster mix commonly used for hard finishes, combining gypsum plaster, lime putty, and fine white sand.

The standard spacing between brick courses.

Concrete hollow blocks are typically made of cement, aggregates, and water.

Materials used in concrete hollow blocks to make them lighter, such as cinders, expanded slag, or expanded shale or clay.

Concrete hollow blocks made with expanded slag are highly resistant to fire.

Concrete hollow blocks with a thickness of 100mm (4 inches) are typically used for interior partition walls where weather resistance is not crucial.

The most common term used to refer to gypsum plaster.

Fiber or hair added to plaster mixtures to increase their strength.

The second layer in a three-coat plastering system, applied to even out the surface.

The first layer in a three-coat plastering system, serving as a base for subsequent coats.

In a two-coat plastering job, the scratch coat and brown coat are combined into a single layer.

The practice of adding water to hardened mortar to make it workable again. It's generally discouraged as it weakens the mortar.