This class covers institutions engaged in manufacturing concrete brick machine and brick from a mixture of cement and combination. Contractors engaged in concrete development work are categorized within the development phase (see Vol. 2, Chapter three: Building Industries) whereas institutions primarily engaged in mixing and delivering ready-mixed concrete are categorized in SIC 3273: Prepared-Combined Concrete.
327331 (Concrete Block and Brick Manufacturing)
In 2000, the concrete block and brick business had roughly 22,365 workers, of which 14,023 have been in manufacturing. Whole payroll expenditures that 12 months have been $768 million, and the price of supplies was $1.9 billion. The greater than 900 institutions working inside this business shipped merchandise with a complete worth of $three.2 billion in 2001.
Though the business had sluggish and fluctuating progress within the 1980s and early 1990s, the power of the general public works phase boosted its efficiency within the late 1990s. The worth of concrete block and brick shipments climbed steadily between 1997 and 1999, from $2.39 billion to $three.28 billion. Weaker cargo values in 2000 and 2001 have been the results of diminished public works spending, an consequence of sluggish financial situations in the USA. Dominant states within the business embody Pennsylvania, California, Texas, and Michigan.
The primary strong concrete block patent was granted in 1832, and the primary hole concrete constructing block patent was in 1850, each in England. Harmon S. Palmer patented a concrete block machine in 1900 in the USA. Since then, the concrete block has continued to extend in reputation due to the product’s sturdiness and economic system. The business additionally superior when it comes to product high quality, manufacturing and distribution strategies, and set up procedures. Concrete’s fireplace security in comparison with that of wooden has been a significant factor in its attraction. Within the early days, small concrete manufacturing amenities sprouted up quickly in most city areas in the USA as a result of they wanted to be situated close to their customers’ locations. A brick machine could possibly be purchased for $100 in 1906, and the enterprise alternatives appealed to entrepreneurial instincts.
The Nationwide Concrete Masonry Affiliation (NCMA) was an affiliate of the Portland Cement Affiliation within the 1930s. The NCMA turned unbiased in 1942 and has since supported concrete block producers, equipment producers, and associated pursuits. Since its founding, the NCMA has performed analysis and testing on concrete block merchandise and buildings.
Institutions on this business are usually comparatively small, native operations, since it’s usually not economical to ship concrete block and brick greater than 50 miles due to its weight. Because of this, firms within the business have grown by organizing or buying added concrete block and brick manufacturing operations in new areas.
One other issue within the construction of the business is that a lot of the firms that produce concrete block and brick additionally produce different concrete-related merchandise, together with ready-mixed concrete, concrete pipe, or varied precast or prestressed merchandise, resembling constructing structural components, which may be fabricated centrally and shipped to areas the place they are going to be put in.
Most concrete block and brick institutions have a number of rivals of their areas of operation and compete in issues resembling value, location, service, high quality, and reliability. Additionally they compete with different constructing merchandise resembling lumber, clay brick, and metal.
Not one of the bigger firms within the concrete industries has concrete block and brick as the first product line. These bigger firms produce concrete block as one a part of a bunch of merchandise within the concrete and different construction-related fields. Main companies inside this business phase ranked by income as of 2003 included Glen-Gery Company of Studying, Pennsylvania, with $150 million in gross sales; Featherlite Constructing Merchandise Company of Austin, Texas, with $50 million in gross sales; and Clayton Block Firm of Lakewood, New Jersey, with $25 million in gross sales.
Analysis continued into the early 2000s to enhance the traits of concrete block machine in addition to to make doable completely different options to suit various customers’ wants and needs. New exterior look attributes have been developed resembling ribbed, fluted, and split-faced surfaces, which have met the wants of progressive architects for the partitions of buildings. Blocks of lighter weight have been created by mixing completely different uncooked materials aggregates with the cement and water. New makes use of have been discovered for concrete blocks, resembling in drainage techniques. Analysis has additionally been performed on methods during which concrete block may be constructed robotically into constructing partitions.