CN104386940A - High-antiseptic-effect retarding water reducing agent and preparation method thereof - Google Patents

Abstract

The invention discloses a high-antiseptic-effect retarding water reducing agent. The invention is characterized in that the water reducing agent is prepared from the following raw materials in parts by weight: 3-5 parts of illegal cooking oil, 2-3 parts of rapeseed oil, 2-4 parts of alkali lignin, 22-25 parts of allyl polyethenoxy ether, 0.7-1 part of dodecyl dimethylbenzyl ammonium chloride, 5-7 parts of ethylene glycol dimethacrylate, 0.3-0.5 part of initiator BPO, 1-2 parts of triethanolamine, 0.2-0.4 part of thioglycolic acid, 3-5 parts of datolite powder, 2.5-4 parts of phosphogypsum, 28-30 parts of water and 2-3 parts of synergist. By adding the phosphogypsum and datolite powder into the water reducing agent by a special technique, the water reducing agent is environment-friendly and energy-saving, and enhances the retarding effect. By adding the synergist, the water reducing agent has favorable dispersibility, and enhances the strength and durability of the concrete. By adding the dodecyl dimethylbenzyl ammonium chloride with antiseptic effect, the water reducing agent has no corrosivity for steel bars when being added into the concrete, and the product is suitable for various types of cement.

Description

Excellent water reducer with delayed coagulation of a kind of preservative effect and preparation method thereof

Technical field

The present invention relates to a kind of preparation method of water reducer, particularly excellent water reducer with delayed coagulation of a kind of preservative effect and preparation method thereof.

Background technology

Concrete admixture, is called for short admixture, refers to before mixing concrete mixing or mixes to improve the material of concrete performance in mix process.Because admixture can improve concrete performance effectively, and have good economic benefit, be all widely used in many countries, the application in engineering more and more comes into one's own, and becomes material indispensable in concrete.Water reducer refers under concrete workability and cement consumption permanence condition, can reduce mixing water amount, improve concrete strength, or under workability and intensity permanence condition, save the admixture of cement consumption, after cement plus water mix, due to the effect of cement granules molecular attraction, grout is made to form flucculation structure, the mixing water of 10% ~ 30% is made to be wrapped among cement granules, unrestricted flow and lubrication can not be participated in, thus have impact on the mobility of concrete mix, after adding water reducer, because water reducer molecular energy oriented adsorption is in cement particle surface, make cement particle surface with same electric charge (being generally negative charge), form electrostatic repulsion, cement granules is impelled mutually to disperse, flucculation structure is destroyed, discharge and be wrapped part water, participate in flowing, thus effectively increase the mobility of concrete mix, the sterically hindered effect of water reducer simultaneously makes concrete slump retention good, and control slump loss.

The present invention by add synergistic agent, the water reducer made can improve concrete dispersiveness and mobility, by special process, and phosphogypsum, trench wet goods add, utilization of waste material, adds retarding effect while protection of the environment.

Summary of the invention

The object of this invention is to provide excellent water reducer with delayed coagulation of a kind of preservative effect and preparation method thereof.

In order to realize object of the present invention, the present invention is by following scheme implementation:

Preservative effect excellence has a water reducer for delayed coagulation, is made up: sewer oil 3-5, rapeseed oil 2-3, alkali lignin 2-4, allyl polyethenoxy ether 22-25, dimethyl benzyl ammonium chloride 0.7-1, Ethylene glycol dimethacrylate 5-7, initiator B PO 0.3-0.5, trolamine 1-2, Thiovanic acid 0.2-0.4, howlite powder 3-5, phosphogypsum 2.5-4, water 28-30, synergistic agent 2-3 of the raw material of following weight part;

Described synergistic agent is prepared from by the raw material of following weight part: ester gum 3-4, quartz sand 6-9, Nano graphite powder 3-5, butyl glycol ether, 1-1.5, microcrystalline wax 1.5-2.5, trisodium phosphate 1-2, EVA latex 12-15, aqueous epoxy resins 8-11; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.

A kind of preservative effect excellence of the present invention has the water reducer of delayed coagulation, is made up of following concrete steps:

(1) by water-soluble for dimethyl benzyl ammonium chloride, then add howlite powder, phosphogypsum, sewer oil, rapeseed oil, agitation grinding 2-3 hour, is uniformly dispersed;

(2) Ethylene glycol dimethacrylate, allyl polyethenoxy ether, excess water, initiator B PO are mixed, be heated to 55 DEG C-70 DEG C, reaction 20-30 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2.5-3 hour under 80 DEG C of-85 DEG C of conditions;

(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 500-800 rev/min and get final product.

The invention has the beneficial effects as follows: phosphogypsum, howlite powder add in water reducer by special process by the present invention, and environmental protection and energy saving, improve retarding effect; Add synergistic agent, dispersing property is good, improves concrete intensity and weather resistance; The present invention adds dimethyl benzyl ammonium chloride and has preservative activity, adds in concrete and does not corrode reinforcing bar, and product is applicable to various cement.

Specific embodiments

Below by specific examples, the present invention is described in detail.

Preservative effect excellence has a water reducer for delayed coagulation, is made up: sewer oil 3, rapeseed oil 2, alkali lignin 2, allyl polyethenoxy ether 22, dimethyl benzyl ammonium chloride 0.7, Ethylene glycol dimethacrylate 5, initiator B PO 0.3, trolamine 1, Thiovanic acid 0.2, howlite powder 3, phosphogypsum 2.5, water 28, synergistic agent 2 of the raw material of following weight part (kilogram);

Described synergistic agent is prepared from by the raw material of following weight part (kilogram): ester gum 3, quartz sand 6, Nano graphite powder 3, butyl glycol ether 1, microcrystalline wax 1.5, trisodium phosphate 1, EVA latex 12, aqueous epoxy resins 8; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.

A kind of preservative effect excellence of the present invention has the water reducer of delayed coagulation, is made up of following concrete steps:

(1) by water-soluble for dimethyl benzyl ammonium chloride, then add howlite powder, phosphogypsum, sewer oil, rapeseed oil, agitation grinding 2-3 hour, is uniformly dispersed;

(2) Ethylene glycol dimethacrylate, allyl polyethenoxy ether, excess water, initiator B PO are mixed, be heated to 55 DEG C-70 DEG C, reaction 20-30 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2.5-3 hour under 80 DEG C of-85 DEG C of conditions;

(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 500-800 rev/min and get final product.

The water reducer excellent product performance that the present invention obtains, water-reducing rate can reach 27.1%, and volume of the present invention is the 1%-2% of cement consumption, and in identical water cement ratio situation, the slump can be made to improve more than 15cm, and mobility increases considerably.

Claims (2)

1. the excellent water reducer with delayed coagulation of preservative effect, it is characterized in that, be made up of the raw material of following weight part: sewer oil 3-5, rapeseed oil 2-3, alkali lignin 2-4, allyl polyethenoxy ether 22-25, dimethyl benzyl ammonium chloride 0.7-1, Ethylene glycol dimethacrylate 5-7, initiator B PO 0.3-0.5, trolamine 1-2, Thiovanic acid 0.2-0.4, howlite powder 3-5, phosphogypsum 2.5-4, water 28-30, synergistic agent 2-3;

Described synergistic agent is prepared from by the raw material of following weight part: ester gum 3-4, quartz sand 6-9, Nano graphite powder 3-5, butyl glycol ether 1-1.5, microcrystalline wax 1.5-2.5, trisodium phosphate 1-2, EVA latex 12-15, aqueous epoxy resins 8-11; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.

2. a kind of preservative effect excellence has the water reducer of delayed coagulation according to claim 1, it is characterized in that, is made up of following concrete steps:

(1) by water-soluble for dimethyl benzyl ammonium chloride, then add howlite powder, phosphogypsum, sewer oil, rapeseed oil, agitation grinding 2-3 hour, is uniformly dispersed;

(2) Ethylene glycol dimethacrylate, allyl polyethenoxy ether, excess water, initiator B PO are mixed, be heated to 55 DEG C-70 DEG C, reaction 20-30 minute, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2.5-3 hour under 80 DEG C of-85 DEG C of conditions;

(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 500-800 rev/min and get final product.