JPH04194162A - Light weight board - Google Patents

Abstract

PURPOSE:To lighten a structual material, by mixing vermiculite, shirasu-balloon, and perlite as a single material or composite materials and using water grass as a binder. CONSTITUTION:A single or composite materials of vermiculite, shirasu-balloon or perlite are used as main constitutive materials and water glass is used as a binder.

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention is applicable to interiors ranging from ceilings, walls, exterior walls, roof bases, floors, and partitions of high-rise buildings to schools, hospitals, offices, and general residences. Concerning exterior base materials and interior and exterior finishing materials.

口 Conventional technology and its problems Conventionally, gypsum board whose main constituent material is gypsum (CaSO4) has been used, but the biggest drawback is that it is heavy.

First of all, the loading at the actual construction work site, the temporary storage within the work site, and the movement and transportation to the work site are all carried out by human hands. The limit is to carry one or two in your hand.

Because a wide variety of workers are working at the same time on a construction site, it is very rare that transport vehicles can be used.

Therefore, the current situation is that transportation causes injury to feet, ceilings, walls, people, etc., as well as to the legs, back, arms, shoulders, wrists, etc., which naturally occur due to the heavy weight. However, there is a huge demand for boards, amounting to 100 million tsubo per year. In addition, strict adherence to the construction period and shortening of the construction period is a major challenge for building owners and construction personnel.

Second, if heavy materials are used on high walls or ceilings, the work must be done on unstable scaffolding. Because it is placed in an unstable location and requires a certain degree of precision, the weight of conventional boards makes it impossible to transport them as desired, and the degree of freedom in construction is greatly restricted.

Thirdly, there is a shortage of construction engineers who actually do the work on site. Young people dislike heavy work, making it difficult to train successors, and the average age of construction engineers continues to rise, making labor shortages a serious problem. In the future, the demand for buildings will continue to increase, and from the perspective of effective use of Japan's national land, buildings will continue to become taller, and conventional boards will not be able to accommodate the ideal structure of high-rise buildings. It cannot be called a material, and it is impossible to meet the current demand for making it as light as possible.

＼Means for Solving the Problems In order to solve the above problems, the present invention provides sound insulation, soundproofing,
Current theories of heat retention, insulation, weight reduction, and nonflammability are completely contradictory, and as a result of conducting research into effective substances based on the premise of solving these issues at the same time, we found that the above-mentioned vermiculite, shirasu balloon, and perlite were each used individually. Or mixed together as a binder, water glass [: (N a S i 02)
n), we were able to solve the problem.

Two effects and their results Therefore, according to the present invention, weight reduction, which is the biggest challenge that could not be achieved with conventional gypsum bonide, has been achieved, and the sound insulation performance is equivalent to that of conventional gypsum board. In addition, because the insulation performance is improved, the heating and cooling effect and power consumption for heating and cooling are reduced, and the degree of freedom in construction is also greatly increased, which naturally increases construction efficiency and shortens the construction period.

In the current situation where the average age in terms of work skills is aging, being lightweight is considered to be the biggest advantage.

Furthermore, the construction method uses the same construction tools as those for conventional gypsum board, and the work contents and work procedures are also the same.

The table below shows a comparison with the conventional one.

The thickness of the board is 12.0 mm.

Okayama Industrial Technology Center 1/30ct Band Frequency (Hz)
Thermal conductivity Kcal/m, hr, 'CC Toyama Industrial Technology Center amount kg/rn' Patent applicant: Shizuo Kuni

Claims (1)

[Claims] This lightweight board is characterized in that its main constituent is vermiculite, shirasu balloons, or perlite alone or in a mixture, and water glass is used as a binder.