Concrete Vibrator Tool Supplier
The process of the concrete vibrator in construction is of vital importance, especially when we talk about durability of the structure; This consists in subjecting the fresh concrete to vibrations immediately after being poured, using vibrators that work with compressed air pressure or electricity, with this procedure the concrete mixture acquires a more fluid and liquefied consistency, allowing the spaces to be covered in a homogeneous way, making it adhere to steel more easily.The main objective of vibrating is to make air bubbles rise inside the mass of fresh concrete and thus go outside, eliminating with the environment and homogenizing. Due to the process of mixing, transporting and placing the concrete, air is trapped in the form of voids or pores, which vary both in size and distribution, and which must be removed to give it consistency and solidity, since these voids decrease the density of concrete, making it more permeable, little resistant and less durable.
Some of the most common vibration compaction methods are:
Internal vibration: consists of directly applying the action of the vibration to the concrete, inserting a vibrating rod inside the mass. Internal application vibrators, also known as immersion or needle vibrators, are the most common for consolidating concrete into walls, columns, beams, and slabs.
External Vibration : Used on construction sites to consolidate the face of freshly poured concrete cement and compact the precast concrete surface; Other uses of the vibrator are in the vibrating table, the block moulder, and the vibrating screen to offer the vibrating motion.
Surface External Vibration : Surface external vibrators, also called vibratory rulers, are used to compact concrete from the surface of the slabs. In these cases, the mixtures are designed so that the settlement does not exceed 75 mm, in order to limit the content of superficial mortar, since the superficial vibration of mixtures with greater settlements will result in the excessive accumulation of mortar and fine material. on the surface, and with this not only will the wear resistance be reduced, but also the probability of appearance of surface cracks, eventual peeling and, in extreme cases, plastic shrinkage cracks will increase.
Vibrating tables : Another external vibration system is the vibrating tables, which are frequently used in the production of precast elements. Normally, these are equipment developed specifically for the industrialized production of a particular element or set of elements. The vibrating tables consist of a rigid board supported elastically on fixed supports. To the board is attached below a vibration generating equipment, which can be eccentric masses moved by belts, or, vibration resistant motors, equipped with eccentric rotary tables, adhered directly to the board. Logically, the vibrating table must be solid, since the mold of the piece is placed on it to produce more of the concrete mass that will form it.
Vibration by rollers : In this type of external vibration of the concrete are the static smooth rollers and the vibratory smooth rollers, which are used in the construction of pavements and dams built with dry concrete. Inside the static smooth rollers are the pneumatic wheels and the metallic smooth rollers.
Revibration : Concrete revibration is used in some cases to improve adhesion between concrete and reinforcing steel, to release trapped water below horizontal reinforcing bars, and to remove additional trapped air voids. This practice does not cause any damage if the concrete is still workable, however it is important not to touch the reinforcing steel with the vibrator needle. Revibration transmitted through the reinforcements to the semi-plastic concrete causes loss of adherence of the bar with the concrete and cracks on the reinforcements.
Conventional vibrating devices on the market have a shaft rotation frequency between 3,000 to 14,000 vpm, which between 3,000 to 12,000 vpm (low and medium) mobilize fine grains; on the other hand, the frequencies (13,000 to 14,000 vpm) are able to mobilize the fines around the coarse ones, resulting in a good distribution of the same and facilitating the expulsion of the air bubbles retained within the concrete mix.
The most important reasons for vibrating concrete mixes and preventing further damage to the material are:
- Increase the strength and durability of concrete.
- Expel excess air and distribute particles more evenly within concrete.
- Reduce the possibility of segregation of fresh concrete and volume changes by subsequent retraction.
- Achieve that the concrete behaves "like a liquid" within the diameter of the vibrator, allowing a better filling of the formwork.
- Obtain mixtures with a compaction that allows the occluded air level to be kept within the expected limits.
Concrete Vibrator Supplier offers you the high performance concrete vibrator you are looking for, from Wyco and Brecon brands, which are useful for compacting concrete that has just been installed, even if they are very thick. The performance of concrete vibrators is optimal and leaves the highest quality surfaces.
Wyco
For over 70 years, Wyco has led the development of innovative tools for concrete consolidation. Wyco works in partnership with industry experts to offer the best tools for the most demanding jobs. Since the development of the only patented Square Head vibrator with square head, Wyco has led product innovation for concrete consolidation with high quality and productivity tools.The Square Head Technology designed and patented by Wyco offers the following benefits:
- An average of 27 percent more surface area than a round head, allowing you to finish the job faster.
- Consolidates concrete up to 50 percent faster due to its unique orbit pattern.
- Square Head offers a longer lifespan than competitors.
- The concrete mix is evolving to meet the most demanding job requirements. The Square Head produces excellent finishes while providing greater durability with easier to use functions.
Brecon
At Brecon we offer a wide range of products and accessories: from vibrators for industrial production in industries such as the concrete industry or applications such as transport, to hand tools such as internal vibrators, electric rammers or surface vibrators.Brecon has specialized in the production of intelligent compaction technology. We offer smart solutions for all applications and industries.
Drawing on decades of experience in the field of vibratory technology, Brecon manufactures a wide range of external concrete vibrator , you can choose between low or high frequency vibrators, mobile or permanent installation, synchronized solutions, almost any voltage and frequency or current keep going.
Brecon needle vibrators are designed to offer a long service life under harsh conditions of use , their reliability is assured through the exclusive use of high-quality materials and components.
