In large-scale infrastructure projects, the amount of cement concrete is enormous, and the durability problem is also very significant. At the same time, due to concrete cracking and poor toughness, many serious issues such as short life and poor durability of infrastructure projects have been caused.
However, if fiber is added to the cement concrete, not only the building life can be extended, but also it can show a visible anti-seismic effect when dealing with particular environments such as earthquakes.
Small fibers can not only significantly increase the strength of cement concrete products, but also play an unexpected role in dealing with cracking problems in later cement construction.
Mortar and cement concrete is cracked because of structural deformation and cracking and no-load deformation cracks. Structural deformation cracks are divided into cracks caused by external loads, caused by deformation of the foundation, deformation of the roadbed, and deformation of the bridge foundation (differential settlement and differential expansion). Cracks cracks caused by structural temperature differences; no-load deformation cracks are divided into shrinkage cracks, plastic cracks, concrete corrosion cracks, corrosion cracks in steel bars, alkali-aggregate reaction cracks, vibration fatigue and shear cracks caused by inertial vibration.
A series makes the fiber of unique chemical treatments and mechanical processing. It has the characteristics of natural hydrophilicity and high strength and high modulus. Because the plant cells are naturally divided and grown without artificial production, the surface has a firm grip — wrapping power. In the subsequent processing, the unique electrodeless material is used to make the fibers into sheet-shaped monomers, which is convenient for the transportation and release of the threads. The flaky monomer is easily dispersed into fiber monofilaments under the action of water immersion and friction of the mixer, which has an anti-cracking effect and can effectively improve the mechanical properties of concrete — freeze-thaw resistance and impermeability.
Understand the role of fiber; we must strictly add the appropriate amount when doing cement construction and infrastructure projects. In this way, the fiber can play its role.