Wood fiber is a natural renewable timber through chemical treatment, mechanical processing of the organic flocculent fiber material. Widely used in concrete mortar, plaster products, wood pulp sponge, asphalt roads, and other areas of the coating to prevent cracking, improve water retention, and improve the stability of the production and construction of propriety, increase strength, and enhance adhesion to the surface have a good effect. Its main function is: thixotropic, protection, absorption, carrier and filler. Due to the capillary action of the fiber structure, the water inside the system is rapidly transferred to the surface of the slurry and the interface, so that the slurry inside the uniform distribution of water significantly reduced skinning. And so that the adhesive strength and surface strength was improved, this mechanism is also due to the reduction in tension in the drying process obviously play the role of of crack resistance. Dimensional stability and thermal stability of the wood fiber insulation materials played a very good thermal insulation concrete cracking. More information on (www.lfxiangyu.com)