When were concrete block machine first made?
However, the history of concrete block begins much earlier than these innovations. Harmon S. Palmer invented the first commercially successful concrete block machine in 1900, but there were many reasons why concrete block became widely used during the first half of the 20th century.
When was base ten blocks invented?
The base 10 system is a number system based on 10. It is also known as the Decimal System or the Hindu-Arabic System. The system was invented over 800 BC. This is more than five hundred years ago. It developed in India and was brought to Europe by the Arabs. By introducing digits, grouping by ten, place value, and expanded form.
When was the first brick made and how?
The oldest discovered bricks, originally made from shaped mud and dating before 7500 BC, were found at Tell Aswad, in the upper Tigris region and in southeast Anatolia close to Diyarbakir. The South Asian inhabitants of Mehrgarh also constructed, and lived in, air-dried mudbrick houses between 7000–3300 BC.
When and how were paver blocks invented?
roads generally consisted of four layers (top to bottom) as follows [Collins and Hart, 1936]:
- Summa Crusta (surfacing): Smooth, polygonal blocks bedded in underlying layer.
- Nucleus: A kind of base layer composed of gravel and sand with lime cement.
- Rudus: The third layer was composed of rubble masonry and smaller stones also set in lime mortar.
- Statumen: Two or three courses of flat stones set in lime mortar.
What year did they stop making cinder blocks?
1947Did you know that cinder blocks aren't even made anymore? That's right! They haven't been manufactured since 1947 after WWII.
Who made the first block?
Harmon S. Palmer invented the first commercially successful concrete block machine in 1900, but there were many reasons why concrete block became widely used during the first half of the 20th century.
Where did cinder blocks originate?
What Are Cinder Blocks Made From? When you burn coal or wood, it leaves behind a residue we call ash or cinders. To make cinder blocks, you combine these cinders with cement. The result is a lightweight, hollow and sturdy block.
How can you tell concrete block from cinder block?
Cinder Block vs Concrete Block Cinder block displays a hollow rectangle structure. Concrete block exhibits a flattened structure. Cinder block is fabricated of- concrete and coal cinders. Concrete block is produced by steel, wood, and cement.
Who invented concrete blocks?
Harmon S. PalmerThe first hollow concrete block was designed in 1890 by Harmon S. Palmer in the United States. After 10 years of experimenting, Palmer patented the design in 1900.
When was concrete first used in America?
1891In 1891, George Bartholomew poured the first concrete street in the U.S., and it still exists today. The concrete used for this street tested at about 8,000 psi, which is about twice the strength of modern concrete used in residential construction.
When were hollow concrete blocks invented?
1850A major advance in concrete masonry occurred in 1850 when Joseph Gibbs patented a hollow-cast block. This hollow block was filled with concrete after a wall was built.
When were hollow bricks invented?
China. The earliest fired bricks appeared in Neolithic China around 4400 BC at Chengtoushan, a walled settlement of the Daxi culture. These bricks were made of red clay, fired on all sides to above 600 °C, and used as flooring for houses.
Why are cinder blocks called cinder?
You're probably familiar with concrete blocks from your local hardware store, where you may have heard some of them called cinder blocks. This is because cinder blocks were originally made in part from cinders that were left over when coal was burned (often at coal-fired plants).
Why do they use cinder blocks in Florida?
Block-built dwellings were formerly popular in Florida. Concrete-block buildings were preferred over frame-built houses by consumers and builders because they were deemed to be stronger, more resistant to termites, and free of the rot problems that may damage wood.
What is the difference between a cinder block and a cement block?
Cinder blocks are hollow rectangle-shaped structures usually made of concrete and coal cinders which find use in construction sites. Concrete blocks often, on the other hand, are flattened constructs made of steel, wood or cement.
Do cinder blocks rot?
Some of the solid concrete blocks are crumbling away to nothing while others adjacent to them appear to be in perfect condition. The cap blocks at the top of the wall are showing the worst deterioration. These blocks are less than 15 years old and the builder assured me they'd last at least 100 years.
Who made concrete blocks?
In 1868, the Frear Stone Manufacturing Co. of Chicago began manufacturing G.A. Frear's patented concrete blocks with decorative trim, less expensive than carved stone. This was the first commercial manufacture of concrete block, and many of these blocks survived the 1871 Chicago fire. 5. Effects. Improvements to Portland cement ...
When was concrete first used?
Widespread manufacture of concrete blocks began in the early 1900s, and their popularity grew rapidly. Since then, they have been used in an enormous number of projects including basement walls, commercial buildings and more.
How long has concrete been around?
If so, this would change the entire accepted history of engineering. Concrete would have been invented at least 2,000 years before it has traditionally been thought, and historians also have theorised the pyramid blocks were carved whole from quarry stones.
What are concrete blocks used for?
Concrete-block structures are still common today for commercial buildings, silos and basement walls. Scientists at Massachusetts Institute of Technology are studying whether the Egyptians might have used concrete blocks in the pyramids. If so, this would change the entire accepted history of engineering.
Why were concrete blocks built in the 1920s?
Thousands of concrete-block houses were built through the 1920s in the U.S., most in the Midwest, perhaps because of the abundant sand and gravel there . The houses were advertised as being fireproof and weatherproof.
When was the hollow concrete block made?
Thousands of concrete-block houses were built through the 1920s in the U.S., most in the Midwest, ...
Who invented reinforced concrete?
In 1824, an English inventor named Joseph Aspidin invented a style of cement, a modified form of which is still the dominant type in construction today. Reinforced concrete, which includes embedded metal, was invented in 1849 by Joseph Monier, although he did not receive a patent until 1867. 4. Significance.
What is the history of concrete?
From the Great Pyramids at Giza to smart sensors for testing concrete temperature, maturity, etc., we’ve put together a list of notable events and discoveries in the history of concrete.
When were concrete floors invented?
6500BC – UAE: The earliest recordings of concrete structures date back to 6500BC by the Nabataea traders in regions of Syria and Jordan. They created concrete floors, housing structures, and underground cisterns. 3000 BC – Egypt and China: Egyptians used mud mixed with straw to bind dried bricks. They also used gypsum mortars and mortars ...
How much mortar was used in the Great Pyramids?
The Great Pyramids at Giza used about 500,000 tons of mortar. A form of cement was also used to build the Great Wall of China around this time. 600 BC – Rome: Although the Ancient Romans weren’t the first to create concrete, they were first to utilize this material widespread.
Why are Roman concrete buildings so tall?
After more than 2,000 years, Roman concrete structures stand tall due to their ingredients colliding with Earth’s natural chemistry.
When was pozzolan cement discovered?
After the fall of the Roman Empire in 476 AD, the technique for making pozzolan cement was lost until the discovery of manuscripts describing it was found in 1414. This rekindled interest in building with concrete.
When was Portland cement first used?
The first widespread use of Portland cement in home construction was in England and France between 1850 and 1880 by Francois Coignet, who added steel rods to prevent exterior walls from spreading.
Who invented Portland cement?
In 1824 Joseph Aspdin invented Portland cement by burning finely ground chalk and clay until the carbon dioxide was removed. Aspdin named the cement after the high-quality building stones quarried in Portland, England. In the 19th Century concrete was used mainly for industrial buildings.
How long has concrete been around?
This is an interactive timeline covering the history of cement and concrete. It spans over 5,000 years, from the time of the Egyptian Pyramids to present day decorative concrete developments. Concrete has been used for many amazing things throughout history, including architecture, infrastructure and more. Complete with photos and descriptions, this timeline is an informative and fun tool.
When was ready mix concrete first used?
1913 -Ready Mix. The first load of ready mix was delivered in Baltimore, Maryland in 1913. The idea that concrete could be mixed at a central plant, then delivered by truck to the job site for placement, revolutionized the concrete industry. www.concreteconstruction.net.
What was the purpose of air entraining agents in concrete in 1930?
1930-Air Entraining Agents. In 1930, air entraining agents were used for the first time in concrete to resist against damage from freezing and thawing. Find out more about air entrainment in Protect Against Freeze Thaw Cycles - Improve Durability.
When was the first concrete arena built?
The first concrete domed sports arena, known as the Assembly Hall, was built at the University of Illinois in 1963. "Fibermesh" Cube. Photo used with permission from SI Concrete Systems, "Fibermesh" is a registered trademark of SI Corporation .
Who made the first concrete countertop?
Buddy Rhodes, the father of the concrete countertop, cast his first countertop in the mid '80s. Around the same time, Fu-Tung Cheng also cast his first concrete countertop. In the twenty years since, concrete countertops have become incredibly popular due to their durability, beauty and range of customization.
Who created the Bomanite process?
Brad Bowman developed the Bomanite process, the original cast-in-place, colored, textured and imprinted architectural concrete paving, in the middle 1950's in Monterey, California. The fifty years since Bowman's development have seen huge growths in the popularity of decorative concrete, changing it from plain and boring to a beautiful decorative element that can enhance the decor of any home or office.
Who created the color concrete?
Lynn Mason Scofield founded L.M. Scofield, the first company to produce color for concrete. Their products included color hardeners, colorwax, integral color, sealers, and chemical stains. Colored concrete has done nothing but grow in popularity since. Read more about modern colored concrete in Coloring Concrete.
When was concrete invented?
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.
When was concrete used in homes?
Although there were exceptions, during the 19 th century, concrete was used mainly for industrial buildings. It was considered socially unacceptable as a building material for aesthetic reasons. The first widespread use of Portland cement in home construction was in England and France between 1850 and 1880 by Frenchman Francois Coignet, who added steel rods to prevent the exterior walls from spreading, and later used them as flexural elements. The first home built using reinforced concrete was a servant’s cottage constructed in England by William B. Wilkinson in 1854. In 1875, American mechanical engineer William Ward completed the first reinforced concrete home in the U.S. It still stands in Port Chester, New York. Ward was diligent in maintaining construction records, so a great deal is known about this home. It was built out of concrete because of his wife’s fear of fire, and in order to be more socially acceptable, it was designed to resemble masonry. This was the start of what is today a $35 billion industry that employs more than 2 million people in the U.S. alone.
Why is gypsum added to cement?
A small proportion of gypsum is added to slow the rate of hydration and keep the concrete workable longer. Between 1835 and 1850, systematic tests to determine the compressive and tensile strength of cement were first performed, along with the first accurate chemical analyses.
How is Portland cement made?
Modern Portland cement is manufactured to detailed standards. Some of the many compounds found in it are important to the hydration process and the chemical characteristics of cement. It’s manufactured by heating a mixture of limestone and clay in a kiln to temperatures between 1,300° F and 1,500° F. Up to 30% of the mix becomes molten but the remainder stays in a solid state, undergoing chemical reactions that can be slow. Eventually, the mix forms a clinker, which is then ground into powder. A small proportion of gypsum is added to slow the rate of hydration and keep the concrete workable longer. Between 1835 and 1850, systematic tests to determine the compressive and tensile strength of cement were first performed, along with the first accurate chemical analyses. It wasn’t until about 1860 that Portland cements of modern composition were first produced.
Why did the Nabataea keep the cisterns secret?
The cisterns were kept secret and were one of the reasons the Nabataea were able to thrive in the desert. In making concrete, the Nabataea understood the need to keep the mix as dry or low-slump as possible, as excess water introduces voids and weaknesses into the concrete.
How much water is needed to harden concrete?
For hydration to take place, concrete must have a minimum water-to-cement ratio of 25 parts of water to 100 parts of cement. Water in excess of this ratio is surplus water and helps make the concrete more workable for placing and finishing operations.
How tall is the first concrete building?
25 Rue Franklin in Paris, France. In 1904, the first concrete high-rise building was constructed in Cincinnati, Ohio. It stands 16 stories or 210 feet tall.
When did concrete block history begin?
In general, the history of concrete block in contemporary building material histories begins with the innovations in block machinery that took place at the turn of the 20th century. However, the history of concrete block begins much earlier than these innovations.
Who invented the concrete block machine?
Harmon S. Palmer invented the first commercially successful concrete block machine in 1900, but there were many reasons why concrete block became widely used during the first half of the 20th century.
When did concrete block become popular?
Although stonelike concrete blocks were popular for the first quarter of the 20th century, they fell out of fashion following World War II. Manufacturers marketed concrete block as an economical building material that was also ideal for industrial, agricultural, and residential projects.
When was the first concrete block machine invented?
After Harmon Palmer invented the first commercially successful concrete block machine in 1900, the industry expanded rapidly with multiple manufacturers producing the blocks with their stone-like surface created through either a mold or the use of special aggregates in the concrete mix.
Why is concrete called Portland cement?
The use of concrete to imitate stone started with its initial name—it was called Portland Cement due to its resemblance to the Portland stone found in England. “Cast stone” was also used to describe a variety of cementitious products that replicate stone; in the early 20th century, concrete blocks with a “rock face” became particularly popular.
Who said concrete blocks are a sensitive medium?
In a 1925 catalog for concrete block, artist Alfonso Lannelli was quoted as saying that “stucco becomes a sensitive medium through which the texture-and-tone qualities of each period can be expressed.“. One noteworthy exception, however, was the 1950s and 1960s "screen block," which allowed concrete block to assume a major design role.
How many rooms are there in the book Concrete Block House?
This book “describes step by step the construction of a five-room, concrete-block house from the first shovelful of soil for the foundation excavation to the last swipe of the paintbrush.”
When were concrete blocks invented?
Block of this type began being made in the early 1900s, when Harmon Palmer patented a machine to make concrete blocks. This development began the modern concrete block industry.
What is concrete block?
Concrete blocks are an integral part of any home construction. Inspect the blocks carefully. The earliest types were pre-cast in a wooden frame and dried. These hand-formed blocks were used until the 1850s and are a mix of sand, cement, water and stone aggregate. Concrete blocks are highly absorbent, and the finishes vary greatly.
What is the most popular finish for concrete blocks?
The Sears Company sold a concrete block-making machine that offered a rockface finish on the masonry, which imitated quarried stone. It was the most popular finish for concrete block and became the industry standard in the era of 1910-1920. Later blocks have a smooth finish.
How long have bricks been used?
Hunker may earn compensation through affiliate links in this story. Bricks have been used for centuries to build homes and commercial structures. Bricks and concrete blocks are some of the oldest and most reliable of building products. Bricks were first used 5,000 years ago and were made from dirt using straw as a binder.
How are old bricks formed?
Old bricks were formed by hand, so look for irregularities in shape. They should be slightly uneven and may contain straw. These older hand-shaped bricks are larger than the bricks made today, although never larger than a hand width.
When were bricks first used?
Bricks were first used 5,000 years ago and were made from dirt using straw as a binder. Later bricks were made from clay and fired in a kiln to increase their durability. The history of concrete blocks dates back to ancient Greece and Rome, although they were not manufactured commercially until the early 20th century.
Do older bricks have a dent?
Older bricks do not have a dent in the middle, called a frog. Instead, older bricks only have a lip at the edge to hold the mortar in place between the bricks. Advertisement.

Background
- A concrete block is primarily used as a building material in the construction of walls. It is sometimes called a concrete masonry unit (CMU). A concrete block is one of several precast concrete products used in construction. The term precast refers to the fact that the blocks are formed and hardened before they are brought to the job site. Most con...
Raw Materials
- The concrete commonly used to make concrete blocks is a mixture of powdered portland cement, water, sand, and gravel. This produces a light gray block with a fine surface texture and a high compressive strength. A typical concrete block weighs 38-43 lb (17.2-19.5 kg). In general, the concrete mixture used for blocks has a higher percentage of sand and a lower percentage of gra…
Design
- The shapes and sizes of most common concrete blocks have been standardized to ensure uniform building construction. The most common block size in the United States is referred to as an 8-by-8-by-16 block, with the nominal measurements of 8 in (20.3 cm) high by 8 in (20.3 cm) deep by 16 in (40.6 cm) wide. This nominal measurement includes room for a bead of mortar, a…
The Manufacturing Process
- The production of concrete blocks consists of four basic processes: mixing, molding, curing, and cubing. Some manufacturing plants produce only concrete blocks, while others may produce a wide variety of precast concrete products including blocks, flat paver stones, and decorative landscaping pieces such as lawn edging. Some plants are capable of producing 2,000 or more b…
Quality Control
- The manufacture of concrete blocks requires constant monitoring to produce blocks that have the required properties. The raw materials are weighed electronically before they are placed in the mixer. The trapped water content in the sand and gravel may be measured with ultrasonic sensors, and the amount of water to be added to the mix is automatically adjusted to compensa…
The Future
- The simple concrete block will continue to evolve as architects and block manufacturers develop new shapes and sizes. These new blocks promise to make building construction faster and less expensive, as well as result in structures that are more durable and energy efficient. Some of the possible block designs for the future include the biaxial block, which has cavities running horizo…
Where to Learn More
- Books
Hornbostel, Caleb. Construction Materials, 2nd Edition.John Wiley and Sons, Inc., 1991. - Periodicals
Koski, John A. "How Concrete Block Are Made." Masonry Construction,October 1992, pp.374-377. Schierhom, Carolyn. "Producing Structural Lightweight Concrete Block." Concrete Journal,February 1996, pp. 92-94, 96, 98, 100-101. Wardell, C. "Operation Foundation." Popular Science,December …