Printed circuit boards (PCBs) are an integral part of electronic devices. They serve as the foundation for electronic components and provide a means for connecting them. There are several types of PCBs available, each with its own set of advantages and disadvantages. In this post, we will be discussing four of the most common types […]
Heavy copper PCBs, also known as thick copper PCBs, are printed circuit boards that use copper thicknesses of more than 3 oz (or approximately 0.0014 inches). These types of PCBs are used in a variety of applications, such as power supplies, power electronics, and high-current circuits. When it comes to choosing a heavy copper PCB […]
LED displays have become a popular choice for a wide range of applications, including advertising, public transportation information, and stadium scoreboards. But what are the pros and cons of using LED displays? In this blog post, we’ll explore the advantages and disadvantages of LED displays to help you make an informed decision about whether they’re […]
LED displays have become a popular choice for outdoor and indoor advertising, events, and other public gatherings. While there are many different types of LED displays available, two of the most common are P6 and P10 displays. In this blog post, we’ll compare the main differences between P6 and P10 LED displays, including resolution, pixel […]
Even the most beautiful brickwork is just so much rubble without a bed of mortar to seal and hold it together. What Is Mortar Repointing? When mortar starts cracking, receding, and falling out of the joints, it’s time to chisel out the old stuff and trowel in the new, a process called repointing. This is […]
A. SCOPE This test describes the procedure to determining the compressive strength developed by mortar using a given concrete sand, in relation to that developed by mortar using Ottawa sand, and it indirectly measures the concrete-making properties of the sand being tested. B. REFERENCES ASTM C 109/C 109M – Compressive Strength of Hydraulic Cement Mortars (Using 2-in. […]
There are many methods to test the strength of dry powder ground mortar on site. Among them, the rebound and ultrasonic rebound methods are more common. These are the most non-destructive testing methods in application. The curve established between them is called the strength measurement curve, which is the basis for estimating the strength of […]
At the moment, there are two main ways to test how resistant high-performance concrete is to chloride ion penetration: the natural penetration method and the accelerated penetration method. Rapid Chloride Penetration Test Natural penetration The natural infiltration method is to soak the concrete for a long time in water with chlorine salt, then slice or […]
The digital rebound hammer is mostly used in structural engineering to test the compressive strength of normal concrete without breaking it. Basic Principles of Hammers The heavy hammer is moved by a spring in the hammer. The heavy hammer hits the striker bar, which is in vertical contact with the concrete surface, with constant kinetic […]