Preparation method of special covering agent for construction waste
2012
The invention relates to a preparation method of special covering agent for construction wastes. Sodium carboxymethylcellulose is used as film forming agent, treated construction waste particles are used as fillers and emulsion liquid is prepared through heating and blending. The method comprises the steps of: 1) crushing the construction wastes and passing the crushed construction wastes through a 1-2mm sieve to obtain the construction waste particles; 2) crushing the sodium carboxymethylcellulose and passing the crushed sodium carboxymethylcellulose through a 1-2mm sieve to obtain sodium carboxymethylcellulose powder; 3) adding water into the sodium carboxymethylcellulose powder and evenly mixing the sodium carboxymethylcellulose powder to obtain emulsion and heating the emulsion to 80-100 DEG C for reaction to form the emulsion liquid; and 4) evenly mixing the emulsion liquid with the construction waste particles. The preparation method of special covering agent for construction wastes has the advantages that the special covering agent can form an even compact covering layer after the special covering agent is sprayed on the surfaces of the construction wastes, the construction wastes and dust can be effectively prevented from flying in the environment, the problem of environmental pollution is thoroughly solved, the covering agent is biodegradable, the operation is convenient to conduct and the covering agent is not influenced by climatic and geographical conditions.
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