Light-penetrating concrete preparation process based on optical fibers wrapped with mortar

Abstract

The invention discloses a light-penetrating concrete preparation process based on optical fibers wrapped with mortar. The process comprises the steps of making the straightened optical fibers penetrate through the cement mortar so that the mortar can adhere to the surfaces of the optical fibers; making the optical fibers to which the cement mortar adheres pass through a shaping barrel so that excessive mortar can be scrapped off; after the cement mortar wrapping the surfaces of the optical fibers is hardened, cutting the optical fibers into equilong optical fiber core strips; aligning the two ends of the optical fiber core strips, and arranging the optical fiber core strips closely together by way of bundling or stacking in formworks; pouring the cement mortar into gaps among the optical fiber core strips; after the cement mortar is hardened, grinding the two ends, in the optical fiber arrangement direction, of concrete, and obtaining the light-penetrating concrete when the optical fiber ends are exposed. By means of the preparation process, when the optical fiber core strips are closely arranged, the array is orderly, spaces among columns and rows of the optical fiber array can be adjusted through thickness variance of a mortar wrapped layer at the surface of the optical fiber, and by utilizing the formworks in different cross-section shapes, the light-penetrating concrete with various forms can be fabricated; in addition, the automated continuous production is achieved, and the fabrication cost of the light-penetrating concrete is greatly reduced.

Description

technical field [0001] The invention belongs to the field of preparation of light-transmitting concrete, and in particular relates to a preparation method of light-transmitting concrete based on optical fiber coating and manufacturing equipment thereof. Background technique [0002] Concrete is one of the most widely used building materials in modern architecture. Traditional concrete is always a dark gray material. However, with the improvement of human requirements for architectural beauty and the development of science and technology, concrete is now not only used as a building material, but also by many artists. And architects also use concrete to shape a variety of works with different artistic expressions. In 2001, an architect in Hungary buried thousands of optical fibers side by side in traditional concrete, and invented light-transmitting concrete. These optical fibers transmit light from one end of the concrete block to the other. When the concrete is placed in fr...

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Problems solved by technology

[0004] There has been a small amount of research in China on light-transmitting concrete and its internal optical fiber array dispersion arrangement technology. Chinese patents 200710007521. It is necessary to manually insert the optical fibers into the holes where the optical fibers are fixed one by one. The operation is slow and the workload is huge. Moreover, it is only suitable for making light-transmitting concrete prefabricated blocks, and the prospect of large-scale promotion and application is slim.

Chinese patent 201210266298.1 provides a method for preparing light-transmitting concrete. Although this method can arrange multiple optical fibers at one time, which reduces the workload of optical fiber arrangement to a certain extent, the optical fibers arranged by this method are dispersed by electrostatic dispersion. , the optical fibers are distributed in a circular area, the fiber spacing is difficult to control, the array effect is lost, and the fiber density at the junction of different fiber bundles is difficult to grasp

This kind of thinking and method belongs to the "post-planting method of light-transmitting medium", which circumvents the problem of optical fiber arrangement to a certain extent, but there is a problem that it is difficult to densely drill holes in thicker concrete

More importantly, since resin and concrete are two different materials, during the simultaneous hardening process, the shrinkage rate of the two is different. If the shrinkage rate of the resin is greater than the shrinkage rate of the concrete, it will cause the light-transmitting concrete to crack or even disintegrate; if the resin The shrinkage rate is smaller than the concrete shrinkage rate, which will cause a gap between the resin and the concrete, which not only affects the light guiding property of the resin, but also reduces the compactness of the light-transmitting concrete

[0006] In summary, the existing preparation methods of light-transmitting concrete have problems such as complex operation, heavy workload, and poor synergy between the light-transmitting medium and the cement slurry matrix.

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