What are the markings for concrete floor slabs: explanation and dimensions

Anyone working on building or renovating projects needs to be aware of the markings on concrete floor slabs. The dimensions, load-bearing capacity, and other specifications of the slab are vitally indicated by these markings. Gaining an understanding of how to read and understand these markings will help to guarantee the project’s success and safety.

Concrete floor slabs are available in different thicknesses and sizes, each intended for a particular purpose. Important information like the type of concrete used, details about the reinforcement, and manufacturing standards are all indicated by the markings on these slabs. Having this knowledge will help you choose the ideal slab for your requirements and make sure it complies with building codes.

The common markings on concrete floor slabs will be dissected and their meanings explained in this post. We’ll also talk about the usual dimensions you may run into and how these affect the way the slabs work and are used. Whether you’re a novice do-it-yourselfer or a seasoned contractor, knowing these fundamentals will enable you to make wise choices and improve the quality of your construction projects.

Main types of structures

Construction types are taken into consideration when classifying. Below is a list of floor types:

1. Void – concrete slabs with technological cavities, allowing to obtain maximum heat and noise insulation properties. Suitable for the construction of buildings of various purposes and number of storeys. With a change in the diameter of the voids, the main characteristics of the slabs change (strength, weight, maximum possible load, etc.). d.).
2. Monolithic – the most durable type of flooring, without technological cavities, additionally reinforced with a reinforcing layer. For their production, high-grade concrete mixtures are used. Due to increased loads, they are used in the construction of high-rise structures, in which the strength of the floor is the determining factor.
3. Ribbed – intended for arranging various types of roofing.

Why do you need to put a stamp??

Concrete floors can be marked to help you identify their primary technical features and make an informed decision about which ones to use based on anticipated load and intended use.

Crucial! Every parameter that is shown on the stamp is universal data. Manufacturers of products made of reinforced concrete are required to adhere to basic labeling regulations. Independent modifications are not permitted.

GOST 23009 has approved guidelines for marking concrete floors used in construction projects. With the help of the brand’s information, you can choose the desired design type by considering its primary characteristics, such as design, dimensions, weight, and strength.

To help ensure the proper slab is used for every construction project, concrete floor slabs are labeled with specific designations that help identify their type, strength, and dimensions. Both builders and homeowners should be aware of these markings because they make the selection process easier and ensure the building’s structural integrity. To help with navigating the complexities of construction and renovation projects, this article will explain common markings found on concrete floor slabs and provide an overview of their standard dimensions.

Why do you need to know all the symbols??

You can accurately determine the configuration and quality characteristics with the aid of appropriate markings.

Specific technological characteristics and attributes of each type of concrete are determined by the caliber of the raw materials used in its production.

All types of building materials used in the installation process are taken into consideration during the design stage of buildings and structures for different purposes. The only way you can accurately determine the floor configuration is to study the standard and supplementary data, as well as the fundamental guidelines for marking slabs.

What data does it include??

An alphanumeric code that represents the primary characteristics of a material and its kind, the grade of a concrete slab enables the designer to accurately assess the product’s strength and dependability.

Using PC63 as an example, let’s interpret the standard marking (10-8). AtVta:

• First two letters – indicates the type of building element. PC – floor slab.
• 63 – its length, measured strictly in decimeters. The length is always 20 mm less, in contrast to the value indicated in the marking. Accordingly, the actual length of the product is 62.8 dm (6280 mm).
• 10 – is the width of the element in decimeters. The actual width of the slab is 10 mm less and is 90 dm (900 mm). These marking features should always be taken into account when selecting the necessary building materials.
• Number 8 denotes the maximum amount of load applied to the load-bearing surface. The unit of measurement for this parameter is centner per square meter. Therefore, the maximum load will be approximately 800 kg/m2, which is a good indicator of strength.
• AtVta – indicates the presence of reinforcement in the product to increase its reliability and strength.

Furthermore, the labeling might have extra characters in it:

• "T" – means that heavy concrete was used in the production of the element. As a result of this, it is possible to achieve maximum strength and improve all performance characteristics.
• "A" — in the technological cavities of the slabs there are additional sealing inserts.

It will be easier to identify a construction product’s type, overall dimensions, maximum load, etc. if you are aware of the basic marking procedure. d.

Additional marks

The number of support points, thickness, diameter, and spacing between technological voids vary amongst slab types. Building products’ design attributes indicate where they should be placed on the load-bearing walls of structures. They are capable of having two to four points of support. As a result, extra letters in the marking represent the quantity of supports:

Three blocks containing brief information are positioned on the side surfaces to indicate additional product designations for construction:

• Brand.
• Manufacturer data.
• Stamp of product compliance with all quality control standards.

• date of manufacture.
• dimensions.
• Weight.

• Number of support points.
• Installation risks.
• Top of the product.
• Sling attachment points.

Building materials manufactured with continuous molding technology are identified by the designation "PB." The marking "PG" indicates the presence of pear-shaped voids.

How to decipher an alphanumeric code?

Let’s analyze the fundamental data that producers display on their goods:

Depending on the kind of technology gaps, floor slabs are labeled as follows:

Any building or remodeling project requires an understanding of the markings on concrete floor slabs. These markings help you select the appropriate materials for your needs by giving you vital information about the kind, strength, and dimensions of the slabs.

Understanding the various marking kinds will help you make sure your project complies with the necessary guidelines and requirements. This information guarantees the longevity and security of your construction and helps you avoid expensive errors.

Understanding how to read and interpret these markings will make your job easier and more productive, regardless of whether you’re working on a residential, commercial, or industrial project. It’s a minor detail that has the power to significantly impact the caliber and outcome of your work.

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