The grouting material
The invention relates to cementing, and may find application in the oil and gas industry. The technical result improved quality of plugging due to the introduction of the backfill material components, reducing the water segregation and sealing cement stone. The grouting material comprising Portland cement clinker, gypsum and mineral Supplement, as the latter contains a mixture of granulated blast furnace slag or granulated blast furnace slag and fly ash with marl or clay in the following ratio, wt.%: mineral Supplement 10-30, gypsum 3-8, Portland cement clinker - the rest. 3 C.p. f-crystals, 2 tab. The invention relates to cementing, and may find application in the oil and gas industry.Known backfill material containing Portland cement clinker, mineral additives and gypsum (see A. Bulatov I., Danyushevsky B. C. Backfill materials. M.: Nedra, 1987, S. 146). The closest analogue is the grouting material containing Portland cement clinker, gypsum and mineral Supplement - granulated blast furnace slag (see Danyushevsky B. C., P. M. Aliyev, Thick Imperial family reference guide pamantasan well due to the introduction of the backfill material components, reducing the water segregation and sealing cement stone.This goal is achieved due to the fact that the grouting material comprising Portland cement clinker, gypsum and mineral Supplement that contains as a mineral additive mixture of granulated blast furnace slag or granulated blast furnace slag and fly ash in combination with marl or clay in the following ratio, wt.%: The mineral additive - 10-30 Gypsum - 3-8 Portland cement clinker - the Rest When used as a mineral additive mixture of granulated blast furnace slag and marl or clay ratio is from 1:1 to 4: 1. When used as a mineral additive mixture of granulated blast furnace slag and marl or clay, the ratio is from 0.5:0.5:1 to 2:2:1. In the composition of Portland cement clinker content of free calcium oxide is in the range of 0.5 to 3.0 wt.%. The grouting material is prepared by the joint grinding components to the residue on the sieve 008 4-10%.Received backfill material shut water to obtain RASPLAV cone 180-220 mm, molded samples and test them in accordance with the applicable procedures. The composition of the backfill material pretene1. The grouting material comprising Portland cement clinker, gypsum and mineral additive, characterized in that as a mineral Supplement he will keep the mixture of granulated blast furnace slag or granulated blast furnace slag and fly ash with marl or clay in the following ratio, wt.%: The mineral Supplement - 10 - 30 Gypsum - 3 - 8 Portland cement clinker - Rest 2. Backfill material under item 1, wherein the Portland cement clinker contains free calcium oxide in the range of 0.5 to 3.0 wt.%.3. Backfill material under item 1 or 2, characterized in that the mineral Supplement contains a blend of granulated blast furnace slag and marl or clay in a ratio of from 1:1 to 4:1.4. Backfill material under item 1 or 2, characterized in that the mineral Supplement contains a blend of granulated blast furnace slag and fly ash with marl or clay in a ratio of from 0.5:0.5:1 to 2:2:1.
FIELD: production of building materials from architectural concrete.
SUBSTANCE: the invention is dealt with the field of production of building materials, in particular with facade decorative items made out of architectural concrete and with depth of relief of 10 - 20 cm. The technical result is improvement of quality of front face of items, decrease of labor input and specific consumption of materials to produce the items, improvement of quality of the form removal, reduction of the forms park. The method of production of the decorative front items made out of the architectural concrete includes preparation of concrete mix with water-cement ratio of 0.2 - 0.4 by milling of a binding substance with additives up to specific surface of 3000-5000 cm2/g and its mixings with a filler - sand, function additives and mixing water, forming as "a face downwards" by filling up the forms with the concrete mixture and vibrating, seasoning up to the concrete mixture achieves a form removal strength and a striking. The binding agent is produced by joint milling of Portland cement, a superplasticizer C-3 and the expanding additive at a ratio (in mass %): Portland cement - 80-97; C-3 - 0.5-2.0; the expanding additive - 2.5-18, intermix it with sand of the following fractional composition (in mass %): 2.5-5 mm -25-35; 0-2.5 mm - 50-60; 0-0.315 mm - 10-20, and forming is exercised in the form with a volumetric relief insert by vibration of a concrete mixture till the end of air bubbling. At milling the binding agent is added with a white pigment in amount of 0.3-5.0 %. Vibration operations are performed by the internal vibrator with a frequency of vibration of 200 Hz or by the vibrating table. In the concrete mixture they inject a function additive - moderator of solidification. After a striking they make furnishing of the front surface of an item by applying a filling putty of following composition (in mass %): binding agent - 25-30, sand of a faction of 0-315 mm -55-60, a water dispersion of a polymer 1-2, water - up to the water-cement ratio - 0.5-0.6. The form for production of the decorative front items out of the architectural concrete contains a casing and the relief lower die shaping the item surface and is supplied with fixing the relief lower die braces made in the form of rods or wedges and-or gussets, and-or plates and caving inserts. At that the casing is heavier than the lower die with an item. The caving inserts and braces are made from the laminated veneer or gypsum, or metal. The casing may have the form of a box made out of concrete or gypsum, either out of a sawdust concrete, or out of magnesian binder and sawdust.
EFFECT: the invention ensures improvement of quality of front face of items, decrease of labor input and specific consumption of materials to produce the items, improvement of quality of the form striking, reduction of the park of the forms.
11 cl, 14 dwg, 1 tbl
