Cmu block weight

Cmu block weight of these attributes are measured quantitatively, and often vary directly with the weight of the concrete masonry wall. Additional wall properties are also impacted by wall weight, although estimates of these properties are based on concrete density or aggregate type, rather than directly on wall weight. Examples of these properties include:.

The versatility of concrete masonry as a construction assembly is well established through the variety of applications and structures it is used to create. Concrete masonry offers almost limitless combinations of color, shape, size, strength, texture, and density. Although most of the following discussions use lightweight and normal weight concrete masonry as examples, the properties of medium weight masonry can typically be expected to fall between the two. Note that while some of these density-related properties, such as sound transmission loss, may be directly referenced in building codes such as the International Building Code ref. In production, the density of a given concrete masonry unit is controlled in part by the methods used to manufacture the unit, but largely by the type of aggregate used in production. Through the use of lightweight aggregates, normal weight aggregates, or blends of lightweight and normal weight aggregates, the resulting density of concrete masonry units can be varied by the producer to achieve one or more desired physical properties. As with all physical properties of concrete masonry, minor variation in density from unit to unit and from batch to batch should be expected.

Cmu block weight

Standards applicable to cmu contain three classifications of weight, expressed in pounds per cubic foot: Normal Weight, Medium Weight, and Lightweight. Normal Weight is lbs. Medium Weight is less than to lbs. In addition to precision and split face gray, a scored split and standard color are normally available. Lightweight is less than lbs. Normally stocked in selected sizes in gray. Note: both Medium Weight and Lightweight units are made with "Lightweight" aggregates. To specify a cmu solely on the statement that it be made with Lightweight aggregates does not provide adequate definition. Of the three weights, Normal Weight is the least expensive and Lightweight is the most expensive. Medium Weight is most popular and therefore has greatest availability for structural applications as its moderate weight and cost generally offer the best labor production to material cost ratio. For example weights per units and wall area, please see charts in Technical Articles, Average Weights. Contact Us. Weights of CMU.

These values apply to most currently available concrete masonry units. Tables 1 through 8 list concrete masonry wall weights for 4 to 16 inch to mm thick single wythe walls.

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Many of these attributes are measured quantitatively, and often vary directly with the weight of the concrete masonry wall. Additional wall properties are also impacted by wall weight, although estimates of these properties are based on concrete density or aggregate type, rather than directly on wall weight. Examples of these properties include:. Tables 1 through 8 list concrete masonry wall weights for 4 to 16 inch to mm thick single wythe walls. Wall weights for grouted 4-in. NCMA and the companies disseminating this technical information disclaim any and all responsibility and liability for the accuracy and the application of the information contained in this publication. Member Login. Back to TEK Resources.

Cmu block weight

Standards applicable to cmu contain three classifications of weight, expressed in pounds per cubic foot: Normal Weight, Medium Weight, and Lightweight. Normal Weight is lbs. Medium Weight is less than to lbs. In addition to precision and split face gray, a scored split and standard color are normally available. Lightweight is less than lbs. Normally stocked in selected sizes in gray. Note: both Medium Weight and Lightweight units are made with "Lightweight" aggregates. To specify a cmu solely on the statement that it be made with Lightweight aggregates does not provide adequate definition. Of the three weights, Normal Weight is the least expensive and Lightweight is the most expensive.

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References International Building Code. Table 2—4-in. Table 6—in. ASTM International, The control of sound between adjacent dwelling units or between dwelling units and public areas is an important design consideration for user comfort. The edition of ASTM C 90 included slightly reduced minimum face shell thickness requirements for concrete masonry units 10 in. Reducing the density of a concrete masonry unit can reduce the overall weight of a structure, and potentially reduce the required size of the supporting foundation, slab, or beam. Reported by the Masonry Standards Joint Committee, and ASTM C90 requires that linear drying shrinkage of all concrete masonry units, regardless of unit density, not exceed 0. Concrete masonry offers almost limitless combinations of color, shape, size, strength, texture, and density. Each unit has square ends and two square cores, as shown in Figure 1. Weights listed in the tables are based on the following assumptions. Heat capacity, an indication of thermal storage capacity, with heavier walls providing higher heat capacities and potentially better energy performance. Normal Weight is lbs.

Concrete blocks, also known as Concrete Masonry Units or CMUs, provide very durable structural and non-structural partitions.

Holm, T. Table 5—in. Reported by the Masonry Standards Joint Committee, and Navigate Section. Standards applicable to cmu contain three classifications of weight, expressed in pounds per cubic foot: Normal Weight, Medium Weight, and Lightweight. The control of sound between adjacent dwelling units or between dwelling units and public areas is an important design consideration for user comfort. Concrete Facts, Vol. Navigate Section. Concrete masonry offers almost limitless combinations of color, shape, size, strength, texture, and density. Table 7—in.