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Composition for arrangement of bases of road pavements and other structures Invention relates to construction and utilisation of wastes of heat engineering, and namely to reinforced ground compositions (soil cements), which can be used for construction of structures, including in structures of bases of road pavements of automobile roads; in an earth bed of automobile roads and other structures; for backfilling, elimination and recultivation of developed soil banks and slurry ponds; for reinforcement of sides of roads, slopes and cavities. Composition for arrangement of bases of road pavements and structures, which includes cement, slurry of chemical water treatment of CHP, and when necessary, for assurance of required humidity (optimum for compacting), it additionally contains sand at the following component ratio, wt % (by solid phase): sand 57-82, cement 6-12, CHP chemical water treatment slurry (on a dry basis) 12-30. The invention is developed in a subclaim of the formula. |
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Composite ameliorative material Composite material contains drilling wastes, portland cement in amount of 5-10% of the volume of the drilling wastes, technical carbon 0.5-1% of the volume of drilling wastes, quick lime 3-5% of the volume of drilling wastes, peat 20-40% of the volume of drilling wastes, sand 10-30% of the volume of the drilling wastes, phosphorus-containing mineral fertiliser 20-30 kg per ton of the composite material. The phosphorus-containing mineral fertiliser can be diammonium phosphate, ammonium nitrate phosphate fertiliser, ammophos with potassium sulphate or potassium chloride in ratio of 70:30 wt %, diammophos with potassium sulphate or potassium chloride in ratio of 70:30 wt %. The composite material further contains hydrocarbon-based spent or unused drilling fluid with hydrocarbon content of 3-5% of the volume of the drilling wastes. |
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Ameliorative preparation for increasing soil fertility Ameliorative preparation is made in the form of extrudates with a diameter of 3-5 mm. According to one version, the preparation comprises the industrial waste - a low-calcium fly ash of hard coal of Ekibastuz origin and cement or gypsous alabaster. The preparation may additionally comprise fossil flour or black carbon, or their mixture at a weight ratio of fly ash and the additional component of 1:1. The ameliorative preparation according to another version comprises black carbon and cement or gypsous alabaster and may additionally comprise fossil flour at a weight ratio of black carbon and fossil flour of 1:1. The amount of cement or gypsous alabaster in the ameliorative preparation is 17-30% by weight of the mixture. |
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Method for cementation of weak soils Invention is related to the field of construction, in particular to methods for cementation of weak soils in preparation and reconstruction of buildings and structures foundations. In method of weak soils cementation, including preparation of water suspension of cement with finely dispersed mineral component and introduction of prepared suspension into soil, as finely dispersed mineral component they use carbonate sludge of chemical water treatment for boiler houses of heat power plants - HPP or heat power stations HPS, which is introduced in composition of solid phase of water suspension of cement prior to preparation of specified suspension in amount of 10-35 wt % of solid phase mass, identifying maximum value of its amount according to the following formula: where W/C - water cement ratio of cement water suspension without addition of carbonate sludge that makes 0.44-0.86. |
Another patent 2528678.