The Low Strength Concrete Floor Slab

Our concrete strengths range from grade c10 to c40.

The low strength concrete floor slab.

T slab is an all new patented slab system that leverages the time tested principles of roman arch design and multiple concrete types to deliver a stronger lighter and more versatile slab. The specification for the floor of a maintenance building called for a 6 inch slab thickness and concrete with a design compressive strength of 3000 psi. Concrete walls estimate volume in concrete walls. This groundbreaking product was designed to deliver all the advantages of the industry s most effective building materials in a single cost effective.

The split tensile strength of concrete is determined using a split tensile test on concrete cylinders. The actual average cylinder strength for the floor concrete was 3630 psi. Concrete slab thickness recommended thickness of concrete slabs. Floors live loads floors and minimum uniformly distributed.

Concern is often expressed about the capacity for the column loads to be transferred through the relatively weaker slab. If that s the case it takes some math and the numbers will be slightly fudged as the weight is not perfectly distributed to ea. C10 with a strength of 8 newtons is designed for kerb backing and bedding. Controlled low strength material clsm or lean concrete sub base.

High strength columns and normal strength slabs. C40 our strongest concrete with a strength of 40 newtons is designed to withstand heavy duty loads. The economic design of a high rise frame building may call for high strength concrete in the columns and a lower strength in the floor slabs. Generally cement treated and lean concrete sub bases are 4 to 6 inches thick.

Four months after the floor was placed 10 cores were drilled measured and tested in compression. Flexural strength of concrete. When a concrete floor slab is subjected to forces it flexes and bends. Concrete mixtures cement sand and gravel mixtures.

It is defined as a measure of an unreinforced concrete slab or beam to. Floor joists capacities carrying capacities of domestic timber floor joists grade c in metric units. It sounds like you are asking what thickness and psi strength is needed to hold a fully loaded semi truck and trailer. The test should be performed according to the astm c496 standard.

The bending and flexing creates high tensile forces that can cause the concrete floor slab to crack see figure 1. Concrete strength is measured by the weight in can withstand 28 days after it has been laid and cured.