Factors That Play A Pivotal Part During Concrete Core Testing

Testing the strength of a concrete slab becomes imperative sometimes. To determine the vigor of the toughened slab, the slab is drilled, and then, core testing is performed. In the concrete core testing procedure, the core of the concrete lab is tested out.

If it becomes unfeasible for the testers to determine the condition of the slab via comprehensive strength tests, core testing remains the best possible resolution for them. The comprehensive and core testing are two far different testing procedures that determine different purposes. While the cylinder strength test ascertains the quality of the concrete, the core testing determines the quality of the in-situ concrete. Since drilling is a prime stunt, the strength of the stone also gets revealed with core testing measures.

There are several factors that influence the results of core testing –

The Diameter of concrete core – To attain the best results, the diameter of the sample slab should be at least 3.70 inches (for comprehensive strength load bearing), and 1.5 inches (for concrete with nominal maximum size).

The length of the sample slab – The length of the specimen concrete slab should be between 1.9 and 2.1 inches.

The evaporation of moisture – After drilling the slab, it is important to clean and wipe off the surface with water. And it is even more important to allow the water to evaporate completely, before taking the sample. Ideally, it takes about 1 hour to the water to evaporate entirely. You can place the samples in your envelopes after that duration has passed.

Significance of Moisture Testing in Building Structures

Adverse effects of moisture in building structures

Moisture can be a great hazard to industrial, commercial and residential buildings. It has become common construction requirement nowadays. The problem arising from moisture in concrete can vary from mild mold growth to cupping, blistering, adhesive failure discoloration and lot more. Such excess moisture in concrete may persist due to excess water in the concrete mix, less drying time, rainfall, lack of HVAC climate control and poor landscaping foundations.

Importance of moisture testing companies

Moisture testing is essential to elicit the signs and symptoms of moisture in any new or old building. It helps in identifying and minimizing the risk of water damage. Moisture testing companies assess the moisture intrusion in industrial, commercial and residential buildings. They provide accurate, unbiased and data backed evaluation. Calcium chloride test and internal relative humidity probe are two common test used for analyzing moisture in the concrete slabs.

Finding the right moisture testing service provider

Reputed and reliable moisture testing companies usually have adequately trained professionals and equipment's to tackle moisture issues on various sites. They chose the right equipment that complies with the latest safety and anti-contamination regulations. It is prudent to choose ICRI certified companies conducting moisture testing as per international standard to get better confidence in test results. Moisture testing is essential to create moisture free and safe building structures.

Testing Out The Signs of Moisture in Concrete Structures

Moisture can severely dent your home, office, and other structures made up of concrete. Though, there are present various solutions that do the waterproofing of concrete structure, if you mix them in the mortar mixture at the time of construction. But, a steady source of wetness may break that waterproofing with the passage of time. So, what’s the rock-solid solution with which you can safeguard your building from moisture and dampness?

Well, to the utmost, it should be made sure that there are no leaks, cracks or other structural defects in the building, during the construction period. Additionally, if some signs of moisture have surfaced with the course of time, they should be immediately checked and removed, using proper methods and means.

Calcium Chloride Test

This critical test signifies the level of moisture, or the condition of the concrete slab, affected by dampness or water. It is one of the essential tests, if you are looking forward to install new flooring in an existing structure.

Core Testing

One of the very useful testing methods, core testing connotes the core components of a slab sample. It utters more about the condition and the effects of those constituents of the concrete mix.

Further, there are various other test procedures - F2170 Concrete in-situ RH and F2420 Concrete Surface RH – that are used for moisture testing in concrete blocks.