CN1097402A - The novel concrete retarder - Google Patents
The novel concrete retarder Download PDFInfo
- Publication number
- CN1097402A CN1097402A CN 93108354 CN93108354A CN1097402A CN 1097402 A CN1097402 A CN 1097402A CN 93108354 CN93108354 CN 93108354 CN 93108354 A CN93108354 A CN 93108354A CN 1097402 A CN1097402 A CN 1097402A
- Authority
- CN
- China
- Prior art keywords
- cement
- retarder
- novel concrete
- concrete retarder
- polyacrylamide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
- C04B2103/24—Hardening retarders
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the cement additire that building operation is used, mainly propose a kind of powdered cement retarder, its main ingredient is a polyacrylamide, NNO diffusant and exsiccated ammonium alum, and it is formulated as weighting agent to add a certain amount of pigment.The present invention can directly mix in proportion and play glued delayed coagulation in cement, and the grout that accesses did not precipitate in the short period of time, hardening, and has wear-resisting, folding, resistance to compression and antifreeze characteristics.Existing its result of use of retarder is good, and the cost reduction, for transportation, construction provide convenience, has certain popularizing value.
Description
The invention belongs to the cement additire that building operation is used, relate generally to a kind of cement retarder.
The retarder that adopts in the building operation at present is mainly 107 glue, its blending is used for drystone, the ceramics of skin and pastes or indoor sticking brick in cement, but it is in that to mix the timing proportional quantity bigger with cement, and the glued effect of synthetic grout slow setting is undesirable, it is liquid in addition, and transportation, construction are all inconvenient.
Purpose of the present invention promptly produces thus, proposes a kind of powdered cement retarder, makes it have the glued effect of good slow setting, make simultaneously its have consumption few, be convenient to the advantage of transporting, constructing.
Major technique of the present invention is characterized as: its main component is: Polyacrylamide, NNO diffusant, exsiccated ammonium alum and to add a certain amount of pigment formulated.
Above raw material pulverizing is sieved, and stirring in proportion gets final product.
Polyacrylamide in the component of the present invention is a kind of highdensity water-absorbent compound, and its water-swellable produces a kind of highdensity glued membrane, and water is slowly evaporated, and plays cement to be slowed down solidify and the agglutinating effect; The NNO diffusant is a kind of aniorfic surfactant, makes an addition to cement, can play pectisation to cement, can evenly spread, and improves toughness and fracture resistence force after theing cement solidifies; Hardness and degree of compactness after the exsiccated ammonium alum use thes cement solidifies in order to increase can also play wear-resisting, withstand voltage, cryoprotective effect simultaneously.
Pigment is mainly as a kind of weighting agent.
The present invention is a kind of yellowish corpuscular type dry powder, can directly mix and in cement, play glued delayed coagulation, mix the grout that auxiliary tone goes out with the present invention, under the effect of rapid diffusion expansion in particle suction back and level dyeing, produce a kind of highdensity colloid, do not precipitate in several hours, not hardening, wear-resisting, folding, resistance to compression and antifreeze characteristics are arranged.
The present invention and existing retarder comparison can reduce cost about 50%, and respond well.Its granular structure brings bigger convenience for transportation and construction, has reduced labour intensity.The results showed to have higher popularizing value.
Embodiment:
2 parts of 8 parts of NNO diffusants of Polyacrylamide
2.5 parts of 0.5 part of iron oxide yellow of exsiccated ammonium alum
Mixing of retarder of the present invention made a gesture of measuring:
Restrain～1000 gram/ton cement winter 500
Restrain～1500 gram/ton cement summer 1000
Claims (3)
1, a kind of novel concrete retarder the invention is characterized in: should contain Polyacrylamide at least in this cement retarder, the composition of NNO diffusant.
2, novel concrete retarder according to claim 1 is characterized in that: the composition that can contain exsiccated ammonium alum.
3, novel concrete retarder according to claim 1 and 2 is characterized in that: add a certain amount of pigment as weighting agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108354 CN1097402A (en) | 1993-07-11 | 1993-07-11 | The novel concrete retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108354 CN1097402A (en) | 1993-07-11 | 1993-07-11 | The novel concrete retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1097402A true CN1097402A (en) | 1995-01-18 |
Family
ID=4987106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93108354 Pending CN1097402A (en) | 1993-07-11 | 1993-07-11 | The novel concrete retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1097402A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319798A1 (en) * | 2001-12-11 | 2003-06-18 | Halliburton Energy Services, Inc. | Sealing subterranean zones |
-
1993
- 1993-07-11 CN CN 93108354 patent/CN1097402A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319798A1 (en) * | 2001-12-11 | 2003-06-18 | Halliburton Energy Services, Inc. | Sealing subterranean zones |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |