Yan'an where bought rock crushing agent, Yan'an silent expansive factory production 3, carbatex silent broken agent works because the (broken agent itself and the amount of water after the beginning of the hydration reaction mixture by condensation, a significant hardening simultaneously with the body swelling, broken agent slurry poured concrete and rock drilling can produce more than the inflation pressure of 120 MPa tensile strength of concrete is 2 MPa ~ 4 MPa, breaking agents make concrete crushing, is generated based on its pore walls The expansion pressure caused by tensile stress due to greatly exceed their tensile strength. swelling pressure proved broken agent is about 24 h to reach the maximum, but still continue to increase in the latter, followed by water-cement ratio, temperature , pore size have an impact on the expansion pressure crushing agent. 4 carbatex silent broken agent Construction Technology 1) construction should be checked before the medicine packaging is intact (damaged packaging material may affect the quality of construction), and ready enough agents clean mixing water, plastic mixing bucket, wooden pole poke, protective glasses, rubber gloves, protective masks, sealing device (wedge and iron wedge), is ready to begin drilling, in order to ensure the safety of the structure of the original caps taken from the middle to the sides step eye, the choice of 40 mm diameter drill (due to the broken part of the depth of about 6 000 mm, drill selection 1 500 mm ~ 2 000 mm), pitch set at 20 cm, from the need to retain the site 300 mm Stop step eyes (the extent of damage is approximately 200 mm). Each layer of about 130 ~ 150 eyes, drilling is completed, the eye carefully with a blowpipe to purge all remaining debris and try to dry. Note: 1, different types of demolition agent hydration reaction to about 24h, the expansion pressure close to the maximum, but can continue to grow by 2, the expansion pressure crushing agent cement ratio decreases with increasing 3, the expansion pressure broken agent with temperature increase increase 4, expansion pressure increased fragmentation agent parameters are broken object aperture with aperture increases / mm Pitch / mm hole depth resistance line / mm amount / (kg / m3) of soft rock crushing 35-50 in hard rock 400 ~ 600 H 400 ~ 600 8 ~ 10 broken 35 ~ 65 300 ~ 600 1.05H 300 ~ 500 10 ~ 15 rock cut 30 ~ 40 200 ~ 400 H 1000 ~ 2000 5 ~ 15 plain concrete crushing 35-50 400 ~ 600 0.8H 300 ~ 400 8 ~ 10 reinforced concrete crushing 35 ~ 50 150 ~ 300 H 200 ~ 300 15 ~ 25 cloth eye design principles: center hole spacing depending on the pore size and hardness of the rock, if you want the best crushing effect, In normal construction must be pre-tested before. Small aperture, the center distance will be smaller; a large aperture, the center distance will be greater, will accelerate the break time, for example: dia30 min: 35 cm (hole t0 hole), dia 35min: 40 cm, dia 40mm: 45 cm, dia 45 mm: 60 cm. Hole diameter and the crushing effect is directly related to the eyelet is too small, it is not conducive to drug fully effective; eyelets is too large, easy punching. It is recommended drill bit with a diameter of 40mm. When the body is crushed object is isolated, drilling depth of 80% to 90% broken body thickness. Hole more than water and residues with high pressure blown clean. Broken agent is a powder material with clean cold water before use thoroughly mixed. That is according to a pack of drug plus 30% to 34% water (by weight) to deploy Whey, which is about to pour stirred 1.5 L ~ 1.7 L water container, then slowly pour a bag of 5 kg fully broken agent stirred into the slurry flow, such as hand-to wear rubber gloves when mixing.