摘要:
The invention relates to a method for providing an underground barrier for a water flow, which method comprises the steps of: - drilling in soil a number of parallel vertical holes; - inserting pipe strings into the drilled holes, wherein each pipe string has a pipe string wall with a plurality of openings arranged distributed along the length of the pipe string; - introducing injector means in each of the pipe strings; - positioning the injector means at a plurality of discrete depths in the respective pipe string and aligned at each depth with at least one of the openings in the pipe string wall; - injecting at each discrete depth a sealing compound, such as sodium silicate, through the at least one aligned opening into the soil.
摘要:
A soil structure, for example a roadbed or levy, is made by admixing into soil from the course of the soil structure (a) calcium oxide, (b) at least one of cement kiln dust, lime kiln dust, fly ash, or cement, (c) a polymer binder for soil that is substantially gravelly, or liquid glass if the soil contains substantial quantities of pozzolanic material, and (d) water. The admixed soil is compacted into a roadbed or other soil structure of predetermined dimensions. After a predetermined amount of time, the liquid sodium metasilicate will catalyze hardening of the admixture if the soil contains sands or substantial quantities of pozzolans, otherwise the binder will cause hardening of the soil.
摘要:
The present invention relates to synthetic nanoparticle soil materials that comprises about 0.5 % to about 20 % metal powder by mass, and about 0.5 % to about 30 % mineral powder by mass, mixed together with quartz-rich sand and a polymorph mineral of aluminum silicate, creating a sand mixture that may be mixed with a silicic acid solution. The ratio of quartz-rich sand to the polymorph mineral of aluminum silicate is between 1:99 and 99:1. The polymorph mineral of aluminum silicate can be kyanite, andalusite, sillimanite, mullite or any variant or substitute of these minerals. The silicic acid solution can be made by mixing silicic acid powder to water in a ratio being 1:99 to 99:1. The ratio of sand mixture to silicic acid solution can be between 1:99 to 99:1.
摘要:
An inorganic electrolytic coagulant which is obtained by mixing phosphonic acid and magnesium sulfate in a solvent free of chlorine and stirring the mixture for several minutes and then adding aluminum sulfate and ferric polysulfate to the resultant mixture, followed by stirring for several minutes; and a method for modifying a mud, characterized as comprising adding the inorganic electrolytic coagulant, a soil particles-reinforcing agent and a pH-adjusting agent to a polluted bottom mud from lakes, ponds, inner bays, rivers or the like, thereby converting the polluted bottom mud to a good soil.
摘要:
The invention concerns a method for stabilising a ground surface and the surfacing resulting from said method, which consists in mixing with the latter a binder capable of setting in the presence of water. Said method is characterised in that it consists in using a binder comprising clinker-free and slag-free industrial silicate glass which has been finely crushed, and in that said binder is completed by adding to the glass at least a basic reagent capable, after it has been mixed, of bringing the water, to a pH not less than 12, the glass/basic reagent mass ratio being more than 3.
摘要:
The invention relates to a an aqueous agent for sealing or consolidating rock, loose rock or soils that are in contact with water containing Ca ions. Said agent contains 2 to 40 wt. % SiO2 (dry matter, in relation to the agent) in the form of an aqueous silica sol and hardening stabilisers from the class of inorganic polyphosphates, phosphonic acids, aminoethylenephosphonic acids, phosphonic acid esters, phosphonocarboxylic acids and polycarboxylic acids or mixtures of these substances, in concentrations of 0.01 to 400 ppm.