4results about How to "Full strength" patented technology

The invention relates to the technical field of box culvert structures, in particular to a UHPC steel bar box culvert structure and a prefabrication method thereof. The box culvert main body is mainly formed by pouring a cementing material, aggregate, filler, an additive, water and ultra-high performance concrete added with mixed fibers. The structural strength is improved by adjusting the water-binder ratio of concrete raw materials, the structural density is reduced by using pre-wetted shale ceramsite, hollow glass beads and other light materials in the concrete raw materials, and the tensile property of the structure is improved by optimizing the adding proportion of steel fibers and polypropylene fibers. In the prefabrication process, an overturning inner mold is adopted as a reinforcing steel bar binding platform, and high-temperature steam is used for concrete curing. Through the optimization, the high-strength characteristic of the concrete box culvert is ensured, meanwhile, the overall density and the wall thickness of the box culvert are effectively reduced, and the tensile capacity of the box culvert structure is remarkably improved.

Provided is a method for manufacturing a composite member that does not require an operation of winding a tape or the like, does not cause problems of uneven winding, gaps, or peeling, can easily form a composite member having sufficient strength with respect to a substrate having a complicated shape, and can be adhered to the substrate without peeling even when heated at a high temperature. The insulating film has excellent insulating properties and heat resistance. A method for manufacturing a composite member (1) having a base material (2) and an insulating film (3) covering at least a portion of the surface of the base material (2), the method comprising: a coating step of coating at least a portion of the surface of the base material (2) with a first film material, and then coating at least a portion of the surface of the base material (2) with a second film material; the first coating material comprises a material containing a matrix (10) of a compound having a siloxane bond and an inorganic material (20); and a first coating material curing step in which the first coating material is cured, and an insulating coating including the first layer (11) and the second layer (12) is formed by repeating the coating step at least a plurality of times.

To provide a spun-bonded nonwoven fabric which is excellent in softness, skin touch, texture uniformity, strength tolerable for practical use, and productivity. The present invention is a spun-bonded nonwoven fabric formed of core-sheath composite fibers using a polyethylene-based resin as a main component, wherein the spun-bonded nonwoven fabric has fusion portions and non-fusion portions, and the ratio (Ofs / Ofc) of the orientation parameter Ofs of the sheath component of the core-sheath composite fibers of the non-fusion portions to the orientation parameter Ofc of the core component of the core-sheath composite fibers of the non-fusion portions is 0.10 to 0.90.

This invention provides an optical component having a light guide plate and a low-refractive-index layer, having sufficient strength to suppress their peeling, and exhibiting excellent light guiding performance. An embodiment of the optical component of this invention comprises: a light guide plate, a low-refractive-index layer disposed on one main surface of the light guide plate, a stress-relieving layer disposed on the side of the low-refractive-index layer opposite to the light guide plate and having a storage modulus of 0.01 MPa to 10 MPa, and a protective layer disposed on the side of the stress-relieving layer opposite to the low-refractive-index layer and having a tensile elastic modulus of 20 MPa or more.