Glass reinforced concrete represents a composite material consisting of fine-grained concrete (matrix) and dispersion reinforced with short glass fibers. Thus, glass reinforced concrete (or GRC) combines the typical of the conventional concrete high compressive strength with extreme flexibility and tensility (4-5 times higher than in concrete), strength (10-15 times higher) and frost resistance (more than 300 cycles).
This is an environmentally friendly material that does not contain harmful ingredients and belongs to the category of non-combustible materials. Glass reinforced concrete offers increased waterproofness and a high degree of adhesion to plain concrete, boasting high resistance to cracking at the same time. Easily molded, acquiring complex spatial shapes with GRC is a walk in the park mission, plus the material exactly replicates the tiniest details on the surface. Moreover, GRC products have a small cross-section (ranging from 6 to 20 mm) and are considerably lighter in comparison with the products of conventional concrete.
Apart from the purely functional properties, a noteworthy GRC feature is an increased architectural expression, as well as extraordinary plasticity. It can play a variety of colors and shades, transmit various textures to recreate the most unexpected for stone material shape and form. The magnificent set of properties predefined the leadership in precast-monolithic and other types of construction throughout the world.
GRC bribes the experts with its versatility and diversity of application spheres, from wall panels for building facades and architectural and decorative details to elements of permanent formwork in bridge and anti-noise barriers. In addition, glass reinforced concrete is widely utilised in installing roofing and waterproofing.
The nomenclature of test rigs is extensive enough, and, therefore, the equipment line-up is pretty diverse. Virtually all the manufactured products pass a particular control, characterised by various complexity and applied in serial and mass production. More importance is attached to test rigs in individual, pilot and small-scale production and (air tooling in particular).
A normal test cycle can be divided into three stages. The first stage, test preparation, implies defining of the objectives; selecting or designing the required test equipment and its manufacture; measuring equipment selection; products preparation (locations designed to accommodate the equipment revision); preparing technical documentation. The second stage is about actual test, and the third one is processing experimental data and the test results formulation.
When testing complex products or systems, it is necessary to receive and process a large amount of information on the various parameters (the total number of parameters may equal several thousands of items). The laborious process rests on the shoulders of a large amount of qualified technical workers. Thus, the use of information-measuring systems for automated test rigs is a challenge yet to be leveled.
In addition, during testing the equipment is adjusted (i.e. regulate its parameters), which implies managing the testing process. To perform the operations mentioned above, test rigs are equipped with automated systems.
Natural rigs testing is particularly vital in various researches conduction and upgrades development. Despite the fact that they extend the process of designing, making it more costly at the same time, the procedures guarantee a high level of reliability and optimality of methods used.
The growing demand of both industrial towns and large cities in carports, caused by the high population density in the urban areas, throw designers together with a good number of challenges. The main objectives set to car park ventilation professionals are typically the following:
- Maintain the acceptable indoor air parameters
- Ensure decent fire resistance
- Implement an environment-friendly system
Covered parking facilities are usually located below the ground level and require the installation of mechanical ventilation in nine cases out of ten. Semi-covered parking constructions, as a rule, are comprised of frames with multiple floors, though a roof and exterior walls may be partially or completely absent. This is where a natural or mixed ventilation system can be installed (a combination of natural and mechanical systems can also be installed for sites with a large floor area).
Closed car park ventilation system performs the following functions:
- Maintains the allowable concentration of carbon monoxide (CO)
- prevents the formation of explosive concentrations of flammable gases
The main factor determining the characteristics of a future parking ventilation system is the approximate number of cars serviced on a daily basis. This number is oftentimes determined by the type of construction, which represents the carport. As a rule, apartment buildings and shopping centers adopt the condition of constant and distributed car use, while the number of moving vehicles varies from 3% to 5% of the total number of cars. The situation is different in parking lots of sports facilities, concert halls, airports and etc. Here, the number of vehicles in simultaneous motion equals 15-20% during peak hours or during the hours that coincide with the beginning or the end of the business day.
Polyshield is a modern, high-performance, sprayed, two component pure polyurea elastomer. The material is based on various amino-polyester resins, amino-resin and MDI prepolymers, providing a flexible, durable and monolithic waterproofing membrane boasting truly efficient resistance to water and chemical activity.
Polyshield is characterised by high abrasion resistance, that’s why it is added into the armory of protective materials as waterproofing and corrosion-resistant coating in heavy and mining industries to prevent abrasive wear.
Polyurea-based Polyshield features
- 100% solvent-free material
- Unlike other materials, polyshield offers hydrophobic properties; therefore, it reacts poorly with wet or cold surfaces it is applied to.
- Larger gel time allows deeper penetration and impregnation.
- Extreme temperatures resistance (121°C+) with an ability to sustain short 150°C loads.
- High abrasion resistance
- Higher strength in comparison with the majority of analogs
- Class 1 Flammability, National Fire Protection Association USA (NFPA) compliant
Spheres of application
The material has been successfully applied in numerous types of residential and commercial facilities; Polyshield is primarily used for:
- Protection of steel from abrasion
- Waterproofing (swimming pools , roof waterproofing, sewage tanks, dams , tunnels, barges and etc.)
- Replacing or repairing sheet membrane coatings
- Waterproofing and corrosion protection of steel tanks, silos and pipelines
- Protective elastomer for polystyrene
- Protective coating for asbestos cement sheets , lead paint and a range of hazardous materials
- Protective coating for truck bodies, cars, dump cars; roof coating.
Distillery industry requires particularly close attention to the quality of the components for spirituous beverages production, as well as the quality of glass containers in which they are bottled. The use of modern ultrasound technology allows achieving excellent results in containers cleaning that exceed any quality standards. Therefore, distillery companies can derive juicy benefits from using ultrasound equipment adjusted to particular demands.
Bottle washing machines allow solving one of the most crucial problems in distillery industry – inner surface of glass containers leaching under the influence of alcohol-containing product. This effect occurs because of poor quality glass surface, damaged by incorrect storage of container. Ultrasonic treatment of glass containers in a weak solution of hydrochloric acid at room temperature contributes to a full recovery of the glass surface, if the initial ratio of water resistance does not exceed 0.6 ml of 0.01 N HCl. The quality of the recovered surfaces is confirmed by storing alcoholic solutions for long periods of time under different climatic conditions.
Bottle washing machines – extra advantages
Bottle washing machines are also used for refillable containers cleaning. To remove the salt deposits in the bottle washing machines use acidic solutions, while removing a range of other contaminants implies using alkaline. Implanting ultrasonic cleaning in distillery manufactures contributes to a 100% increase in reusable packaging cleaning and a significant productivity growth.
Ultrasonic Cleaners can significantly intensify the process of extraction, resulting in rapid obtaining of high-quality extracts for the production of alcoholic beverages. An ultrasound effect on the extraction is achieved due to improved hydrodynamic conditions of the process and an increased temperature of the mixture. Another process optimization method lies in ultrasonic modules integration in existing equipment (percolators, extractors and tanks for infusion).
The process of ultrasonic cleaning is also used pharmaceutical, food and fertilizers production industries. Ultrasonic effect helps to retrieve various aqueous, alcoholic, oily solutions, crystalline substances, and thick dry extracts, syrups, pigments, aromatic solutions, disinfectants and etc.
Hilsonic is a shining example of an innovative company that focuses on providing ultrasonic cleaner of quality second to none. Drop in at hilsonic.co.uk to get acquainted with the price-list.