The basic composition data of light composite wallboard are cement, sand, fiber and water. The following introduces the production technology and technical requirements of high-quality lightweight composite wallboard!

Production technology:

1 eruption Technology

Including technical eruption and active eruption. In the early 1970s, the British Construction Research Institute (BRE) used this method to manufacture glass fiber reinforced cement (GRC) products earlier. Whether it is still a mechanical process eruption, eruption technology, special training needs through operators and special equipment. Operation or incorrect methods significantly affect the strength and durability of GRC products. As for the eruption technology, glass fiber is randomly distributed in cement mortar in two-dimensional random direction, which has high utilization rate and good physical properties.

2. Premixing Technology

Technical requirements for high quality GRC lightweight wallboard composites:

GRC lightweight composite board must ensure that it meets the glass fiber content. The effect of glass fiber in commodities is the same as that of reinforcement in reinforced concrete. Without the same content of reinforcement glass, the enhancement effect can not be achieved. If glass fiber is not added, the flexural strength of tensile and cement-based products is less than 2 MPa, and the flexural strength and commercial foot glass content can reach 6Mpa. In the process of use, commercial construction and decoration components accept at least five kinds of load effects (self weight, wind, earthquake, temperature stress, dry and wet deformation stress and other external loads). If the strength target is not reached, it will be very unsafe.

Premixing technology is to mix chopped glass fiber and cement mortar matrix together to form a uniform glass fiber cement mixture, and then make goods by pouring or eruption. According to the different forming methods, the pre mixing technology can be divided into pre mixing pouring technology and pre mixing pouring technology. The premixed pouring technology is similar to the technology of precast concrete products, and the feeling process is often supplemented in the pouring process.

GRC lightweight composite wallboard must be reinforced with alkali resistant glass fiber, because the cement stone formed by the hydration reaction of cement and water contains about 25% calcium hydroxide, glass fiber contains 70% silicon dioxide, and calcium hydroxide silica will attack an irreversible chemical reaction to produce hydrated calcium silicate with strength much lower than that of silicon dioxide, and the strength of glass fiber will decrease significantly, Then the strength of the product is greatly reduced. Alkali resistant glass fiber is alkali resistant by adding no less than 16% zirconia into the glass fiber to prevent the reaction of zirconia, silica and calcium hydroxide, ensure that the strength of the glass fiber is not weakened, and then ensure the durability of the product. Because adding zirconia will greatly increase the cost of glass fiber, alkali resistant glass fiber is several times the quotation of general glass fiber and dozens of times that of cheap glass fiber. Therefore, the quotation of available GRC lightweight composite wallboard cannot be very low.

The basic composition data of light composite wallboard are cement, sand, fiber and water. The following introduces the production technology and technical requirements of high-quality lightweight composite wallboard!

Production technology:

1. Eruption Technology

Including technical eruption and active eruption. In the early 1970s, the British Construction Research Institute (BRE) used this method to manufacture glass fiber reinforced cement (GRC) products earlier. Whether it is still a mechanical process eruption, eruption technology, special training needs through operators and special equipment. Operation or incorrect methods significantly affect the strength and durability of GRC products. As for the eruption technology, glass fiber is randomly distributed in cement mortar in two-dimensional random direction, which has high utilization rate and good physical properties.

2. Premixing Technology

Technical requirements for high quality GRC lightweight wallboard composites:

GRC lightweight composite board must ensure that it meets the glass fiber content. The effect of glass fiber in commodities is the same as that of reinforcement in reinforced concrete. Without the same content of reinforcement glass, the enhancement effect can not be achieved. If glass fiber is not added, the flexural strength of tensile and cement-based products is less than 2 MPa, and the flexural strength and commercial foot glass content can reach 6Mpa. In the process of use, commercial construction and decoration components accept at least five kinds of load effects (self weight, wind, earthquake, temperature stress, dry and wet deformation stress and other external loads). If the strength target is not reached, it will be very unsafe.

Premixing technology is to mix chopped glass fiber and cement mortar matrix together to form a uniform glass fiber cement mixture, and then make goods by pouring or eruption. According to the different forming methods, the pre mixing technology can be divided into pre mixing pouring technology and pre mixing pouring technology. The premixed pouring technology is similar to the technology of precast concrete products, and the feeling process is often supplemented in the pouring process.

GRC lightweight composite wallboard must be reinforced with alkali resistant glass fiber, because the cement stone formed by the hydration reaction of cement and water contains about 25% calcium hydroxide, glass fiber contains 70% silicon dioxide, and calcium hydroxide silica will attack an irreversible chemical reaction to produce hydrated calcium silicate with strength much lower than that of silicon dioxide, and the strength of glass fiber will decrease significantly, Then the strength of the product is greatly reduced. Alkali resistant glass fiber is alkali resistant by adding no less than 16% zirconia into the glass fiber to prevent the reaction of zirconia, silica and calcium hydroxide, ensure that the strength of the glass fiber is not weakened, and then ensure the durability of the product. Because adding zirconia will greatly increase the cost of glass fiber, alkali resistant glass fiber is several times the quotation of general glass fiber and dozens of times that of cheap glass fiber. Therefore, the quotation of available GRC lightweight composite wallboard cannot be very low.