gypsum block 1930

Interior Wall Coverings & Finishes: How to Identify Types ...

Guide to beaverboard, drywall, plaster & paneling on interior walls: Ages & types of finish materials used for interior walls & ceilings: here we provide a photo guide to identifying types of plaster, lath, Beaver board, Upson Board, and Drywall to help identify these interior building wall and ceiling coverings and as an aid in determining the age of a building.

Gypsum block - Wikipedia

Gypsum block is a massive lightweight building material composed of solid gypsum, for building and erecting lightweight, fire-resistant, non-load bearing interior walls, partition walls, cavity walls, skin walls, and pillar casing indoors. Gypsum blocks are composed of gypsum, plaster, water and in some cases additives like vegetable or wood fiber for greater strength.

R-Value of Building Materials

Concrete Block 4 inch 0.80 Concrete Block 8 inch 1.11 Concrete Block 12 inch 1.28 Brick 4 inch common 0.80 Brick 4 inch face 0.44 Poured Concrete 0.08 Soft Wood Lumber 1.25 2 inch nominal (1 ⁄₂ inch) 1.88 2 x 4 (3 ⁄₂ inch) 4.38 2 x 6 (5 ⁄₂ inch) 6.88 Cedar …

Plaster types in buildings: Plaster Ceilings & Plaster ...

Above: excerpted from a photo provided by a reader . who was renovating a North American home built ca 1930, we see fiberboard-gypsum panels used as a plaster base. [Click to enlarge any image] Fiberboard pre-laminated to gypsum was sold in sheets in several thicknesses for use as a plaster base.

Internal walls and partitions - British Gypsum

if British Gypsum components are used throughout, and the Company's fixing recommendations are strictly observed. Any variation in the specifications should be checked with British Gypsum. Wall construction: 100mm medium density concrete blocks (minimum 120kg / m 2) Plasterboard fixing method: DriLyner BASIC using Gyproc Dri-Wall Adhesive

How to measure water potential—which method is right for ...

Gypsum blocks: cheap and simple. Gypsum blocks are often used as simple indicators of irrigation events. Gypsum blocks measure the electrical resistance of a block of gypsum as it responds to changes in the surrounding soil. The electrical resistance is proportional to water potential. Advantages. Gypsum blocks are incredibly cheap and fairly ...

An Exciting History of Drywall - The Atlantic

Gypsum is noncombustible, and compared to other wall materials, like solid wood and plaster, gypsum boards are much lighter and cheaper. As a …

Structural Insulated Panels (SIPs) | WBDG - Whole Building ...

Frank Lloyd Wright used a form of structural insulated panels in the Usonian homes built in the 1930's and 1940's. ... plywood, fiber-cement siding, magnesium-oxide board, fiberglass mat gypsum sheathing, and composite structural siding panels. Figure 2: Typical SIP with OSB and EPS. ... The block spline is a thin and narrow SIP assembly that ...

Drywall - Wikipedia

Drywall (also known as plasterboard, wallboard, sheet rock, gypsum board, buster board, custard board, or gypsum panel) is a panel made of calcium sulfate dihydrate (), with or without additives, typically extruded between thick sheets of facer and backer paper, used in the construction of interior walls and ceilings. The plaster is mixed with fiber (typically paper, glass wool, or a ...

The History of Drywall

The Housing Act of 1949 facilitated the construction of thousands of homes across the United States. In addition, with the development of the Interstate Highway system, more and more people were moving to the suburbs. It was in this context that Drywall took over as leader in the industry. By the late 1950's and 1960's, though plaster was still ...

How Farmers Irrigate in California

tightly water is held in the soil (tensiometers and gypsum blocks) or with a that directly measures water content (a neutron probe). But there's a problem: Each reading re- flects conditions in only one spot, while actual conditions in the field may vary widely. The farmer must either install

Role of Gypsum in Cement and its Effects - The Constructor

🕑 Reading time: 1 minuteGypsum is a mineral and is hydrated calcium sulphate in chemical form. Gypsum plays a very important role in controlling the rate of hardening of the cement, so its is generally termed as retarding agent of cement. It is mainly used for regulating the setting time of cement and is an indispensable […]

Gypsum Association – A not-for-profit trade association ...

A not-for-profit trade association founded in 1930, promoting the use of gypsum while advancing the development, growth, and general welfare of the gypsum industry in the United States and Canada on behalf of its member companies

WEIGHT OF WALL AND PARTITIONS IN - Ohio University

4" Gypsum Block 13 4" Limestone 55 4" Terra -Cotta Tile 25 MASONRY PARTITIONS 4" Stone 55 Glass Block, 4" 18 Glass Plate, 1/4. 3.3 Glazed Tile 18 Marble or Marble Wainscoting 15 Plaster, 1" 8 Plaster, I" on Wood Lath 10 Plaster, I. on Metal Lath 8.5 Porcelain-Enameled Steel 3 ...

Repairing Historic Flat Plaster Walls and Ceilings - Old ...

While gypsum was used in base-coat plaster from the 1890s on, it has always been used in finish coat and decorative plaster. For finish coats, gauging plaster was added to lime putty; it causes the lime to harden. Gypsum is also the ingredient in moulding plaster, a finer plaster used to create decorative moldings in ornamental plaster work. Lime.

Preservation Brief 21: Repairing Historic Flat Plaster ...

Gypsum. Once mined from large gypsum quarries near Paris (thus the name plaster of Paris), gypsum in its natural form is calcium sulfate. When calcined (or heated), one-and-a-half water molecules are driven off, leaving a hemi-hydrate of calcium sulfate. When mixed with water, it …

Specification by Period - UWE

During the 50s gypsum based plasters became more common, at first these were usually mixed on site with added sand. By the mid 1960s most builders were using pre-mixed lightweight plasters such as Carlite. Some houses (1960s) were built with brick and block cross walls (gable and party walls) with timber studding to front and rear walls.

The History of Concrete - InterNACHI®

The precursor to concrete was invented in about 1300 BC when Middle Eastern builders found that when they coated the outsides of their pounded-clay fortresses and home walls with a thin, damp coating of burned limestone, it reacted chemically with gases in the air to form a hard, protective surface.

Class of Construction | Integral Blog

Interior partitions will frequently be of masonry or gypsum block although many movable and lightweight partitions are used. Included in this classification are Uniform, Basic and Standard Building Code construction, Types I and II (noncombustible) and ISO Classes 5 and 6 if the framing is protected steel. ISO Class 5 and 6 buildings with load ...

What is this strange wall-board material? 1930's wood ...

I am currently renovating a brick rowhouse in Baltimore City that was built around 1930. All of the houses in this group were built with a strange wallboard material that is neither plaster nor drywall. It is a one quarter inch thick board that appears to be gypsum-like. The difference is that the gypsum has a large amount of tiny wood chips ...

What Happened to the Use of Gypsum Block? : AWCI's ...

The use of gypsum block was very common for interior partitions for many decades. In the United States, the marketing for this tile was phased out by the mid-1970s. The block was the substrate for the direct application of gypsum plaster. When complete the wall was totally non-combustible and offered impressive fire-resistive properties.

(Getty Publications)

Thirty-seven essays written by leading experts offer insights into the history, manufacturing processes, and uses of a wide range of materials, including glass block, aluminum, plywood, linoleum, and gypsum board. Readers will also learn about how these materials perform over time and discover valuable conservation and repair techniques.

All Things Gypsum A Brief History of Gypsum Board in North ...

Prior to 1894, gypsum had been used for thousands of years as a building material and as an architectural detailing element. The first evidence of the use of gypsum in building construction appears to have occurred in 3700 B.C., when the Egyptians used gypsum blocks and plaster applied over woven straw lath in the building of the pyramid of Choeps.

Charlotte Green (1930-2003) - Find A Grave Memorial

Block 29, Lot 13, Space 2B: Memorial ID: ... (29 Oct 1930–27 Oct 2003), Find a Grave Memorial ID 19947772, citing Gypsum Hill Cemetery, Salina, Saline County, Kansas, USA ...

8 Types of land subsidence, by Alice S. Allen, Bureau of ...

8.2.2 Gypsum Gypsum (CaSO 4•2H20) is a soluble rock-forming mineral which, with its anhydrous counterpart, an-hydrite, occurs abundantly in marine evaporite basin deposits. Evidence that surface subsidence was caused by dissolution of gypsum in past geologic times includes collapse features in …

History | USG

United States Gypsum Company purchased the Sackett Plaster Board Company in 1909, and entered the gypsum board market. 1910s The evolution of Sackett Board continued and near the end of 1916, a new manufacturing innovation produced boards with a single layer of plaster and paper that could be joined flush along a wall with a relatively smooth ...

Lorem Ipsum – Generator, Origins and Meaning

Generate Lorem Ipsum placeholder text for use in your graphic, print and web layouts, and discover plugins for your favorite writing, design and blogging tools. Explore the origins, history and meaning of the famous passage, and learn how Lorem Ipsum went from …

Asbestos in Materials Such as Cinder Blocks, Mortar, and ...

Residential constructions built before 1900 containing cinder blocks were made with asbestos. Masonry Cement refers to a specific type of cement that contained asbestos as reinforcement, for preventing cracking in the finished product. This is the bonding agent used between cinder blocks and bricks.

American Gypsum Products | American Gypsum

Unless noted in the design, the face layer of an assembly (except those with pre-decorated surfaces or exterior gypsum sheathing) shall have joints taped and fastener heads treated (minimum Level 1 as found in GA-214 - Recommended Levels of Finish for Gypsum Board, Glass Mat and Fiber-Reinforced Gypsum Panels).

Expert guide to plaster in old homes | Real Homes

For a standard job using gypsum-based finishes, expect to pay between £450-£750 for walls in an average room, and £200-£350 for the ceiling. The price can double for lime or specialist clay coatings. How to plaster an old home with lime. Employ an experienced lime plasterer. Lots of plasterers will say they can do it, but most of them can't.

CEMENT 101 - An introduction to the World's most important ...

CEMENT 101 - An introduction to the World's most important building material. 19 August 2011. Figure 1: Cement (left) (4), mortar (centre) (5) and concrete (right) (6). Figure 2: Clinker (16). Figure 3. Schematic energy diagram showing heat emitted at various stages of hydration (15). Figure 4: Total global cement production by year 1930 ...

A Listing of Asbestos Products by Manufacturing Company

(1930-1982) CertainTeed Asbestos Cement Pipe (1962-1992) CertainTeed Cold Process Cement (1940-1967) CertainTeed Joint Treating Compound (1937-1956) CertainTeed Plastic Cement (1930-1983) CertainTeed Sealing Cement (1930-1976) Wet Seal Plastic Cement (1961-1977) Chevron, USA: Roof Coating (1926-1984) Chrysler Corporation: Brake Linings

Plasterboard products - British Gypsum

The widest range of high quality plasterboards to meet differing performance requirements for walls, ceilings, floors, partitions and encasements for any type of building. The Gyproc plasterboard product range provides solutions for enhanced moisture, fire, acoustic, impact and thermal performance. Plasterboards with enhanced performance have ...