Water glass material is the main material to prevent and extinguish fire, but ordinary water glass gel is easy to lose water, weak compressive strength, poor fluidity, high cost and so on. In order to solve the above problems, in this paper, the common water glass gel was modified by adding new polymer water absorbing material, plasticizer and sodium bicarbonate. The results show that the optimum ratio of water, sodium bicarbonate, super absorbent resin and β- cyclodextrin is 3000:200:60:5, and the water retention and plastic effect of the gel material is the best. Compared with ordinary water glass gel, the water retention and compressive strength of the new plastic gel are significantly enhanced, which solves the problems existing in common mineral water glass gel.
In order to reveal the AE time series characteristics of coal in different damage and failure processes, a multiple damage mechanics and AE experimental system was established to study the changes of AE signals in the deformation and failure process of Bailu coal and Bailu rock under the conditions of heating, uniaxial compression and temperature pressure coupling. The experimental results show that the AE characteristics of coal in different variable damage and fracture stages are different, and the AE signal intensity produced by temperature pressure coupling is significantly higher than that of heating up and uniaxial compression. Fitting the relationship between temperature, stress and AE under three failure conditions, the results show that there is an obvious correlation between temperature, stress and AE.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.