CN104496306A - Anti-crack concrete and preparation method thereof - Google Patents

Abstract

The invention discloses anti-crack concrete and a preparation method thereof. The anti-crack concrete is prepared from the following raw materials in parts by weight: 60-85 parts of cement, 20-35 parts of paddy ash, 15-20 parts of granulated slag, 10-12 parts of steel slag, 30-40 parts of a mushroom cultivating material, 1.5-1.6 parts of an accelerator D, 0.4-0.6 part of sodium tripolyphosphate, 1-2 parts of a polycarboxylic acid water reducing agent, 2.5-4.0 parts of ferric chloride, 6-7 parts of castor oil, 1-2 parts of polyethylene glycol, 1.2-1.5 parts of ethyl acrylate, 1.5-2.0 parts of calcium lignosulfonate and a proper amount of water. According to the anti-crack concrete and the preparation method disclosed by the invention, the mushroom cultivating material is placed in the concrete by virtue of modification treatment, so that the density, the bulk density, the impermeability and the compressive strength of the concrete are improved, and the concrete can not have the problems of burning, cracking, falling off and the like, is waterproof and durable and is long in service life; as the paddy ash, the granulated slag and the steel slag are added in the concrete, the resources are saved, the waste is turned into wealth, and the anti-crack concrete has great market popularization value and application prospect.

Description

A kind of anti-crack concrete and preparation method thereof

Technical field

The present invention relates to building material field, particularly relate to a kind of anti-crack concrete and preparation method thereof.

Background technology

The primary building material being applied to structure in China's building is concrete, and natural sand is its main thin skeleton, and the application of most areas is natural sand at present, and natural sand belongs to local resources, and non-renewable in a short time.Along with the increase of construction amount, the many regional natural sand of China is closely exhausted, and simultaneously because the transition exploitation of natural river sand can damage ecotope, many places have been forbidden or limited exploitation natural river sand, cause the imbalance between supply and demand of engineering sand to become increasingly conspicuous thus; Current concrete also do not possess above over-all properties or cost higher, require further improvement performance, to meet the needs that drilling well that China constantly deepens is built, increase economic efficiency simultaneously, promote society's progress quickly.

Summary of the invention

The object of the present invention is to provide a kind of anti-crack concrete and preparation method thereof.

The present invention adopts following technical scheme to achieve these goals:

Anti-crack concrete, the weight part of its constitutive material is: cement 60-85, paddy ash 20-35, grain slag 15-20, slag 10-12, Mushroom cultivation material 30-40, vulkacit D 1.5-1.6, tripoly phosphate sodium STPP 0.4-0.6, polycarboxylate water-reducer 1-2, iron(ic) chloride 2.5-4.0, Viscotrol C 6-7, polyoxyethylene glycol 1-2, ethyl propenoate 1.2-1.5, calcium lignin sulphonate 1.5-2.0 and water are appropriate.

Anti-crack concrete, the weight part of its constitutive material is: cement 75, paddy ash 28, grain slag 18, slag 11, Mushroom cultivation material 35, vulkacit D 1.6, tripoly phosphate sodium STPP 0.5, polycarboxylate water-reducer 1.5, iron(ic) chloride 3.5, Viscotrol C 6.5, polyoxyethylene glycol 1.5, ethyl propenoate 1.4, calcium lignin sulphonate 1.8 and water are appropriate.

The preparation method of anti-crack concrete, comprises following content:

(1) modification of Mushroom cultivation material: dried under 80 DEG C of-90 DEG C of conditions by mushroom culture medium waste material by weight, is placed in charring furnace by the waste material after oven dry and under 600-650 DEG C of condition, carbonizes 2-3 hour, carbonization residue; Add after pulverizing residue 2-3 times amount acid properties-correcting agent, described sour properties-correcting agent be citric acid, acetate and hydrochloride by the proportioning mix acid liquor of 4:2:1, in residue, add residue 0.2-0.3% Sodium hexametaphosphate 99 and 0.4-0.5% water glass again after stirring; The water bath with thermostatic control vibrator being finally placed in 30-50 DEG C vibrates 40-60min, filters, with distilled water by filter cake washing to neutral, dry and get final product; The formula of described Mushroom cultivation material is: chestnut shell 4-5, reed 2-3, corn cob 10-12, soybean meal 4-5, white lime 2-4, zeolite powder 8-10, powdered iron ore 10-12, magnesium powder 2-4, domestic refuse carbonize grey 5-10, brown sugar 3-5, potassium primary phosphate 0.4-0.6, calcium superphosphate 0.5-0.6, potassium humate 0.8-1.0, palm hull 3-5;

(2) take each raw material by the weight part of constitutive material, grain slag, slag are ground, then mix with cement, paddy ash, add appropriate water again to mix, be heated to 150-180 DEG C, be uniformly mixed 1-2min, then granulation, balling-up particle diameter is at 0.5-1mm, for subsequent use;

(3) Mushroom cultivation material after adding the modification of step (1) in step (2) compound and other residue constitutive materials, 3-5 minute is stirred under 300-400 rev/min, the material three-roll grinder grinding 1-2 hour will be stirred again, then pours into a mould, vibrates; In the wet environment of room temperature, maintenance one week is carried out after building.

Beneficial effect of the present invention:

The present invention is by the modification to Mushroom cultivation material, be filled in concrete, add concrete density, tap density, impermeability and ultimate compression strength, make concrete there will not be burning, ftracture and the problem such as to come off, and waterproof durable, the life-span is long, paddy ash, grain slag, slag is added in formula of the present invention, economize on resources, turn waste into wealth, there is larger market popularization value and application prospect.

Embodiment

Embodiment 1: anti-crack concrete, the weight part (kg) of its constitutive material is: cement 75, paddy ash 28, grain slag 18, slag 11, Mushroom cultivation material 35, vulkacit D 1.6, tripoly phosphate sodium STPP 0.5, polycarboxylate water-reducer 1.5, iron(ic) chloride 3.5, Viscotrol C 6.5, polyoxyethylene glycol 1.5, ethyl propenoate 1.4, calcium lignin sulphonate 1.8 and water are appropriate.

The preparation method of anti-crack concrete, comprises following content:

(1) modification of Mushroom cultivation material: dried under 85 DEG C of conditions by mushroom culture medium waste material by weight, is placed in charring furnace by the waste material after oven dry and under 620 DEG C of conditions, carbonizes 2-3 hour, carbonization residue; Add after pulverizing residue 2-3 times amount acid properties-correcting agent, described sour properties-correcting agent be citric acid, acetate and hydrochloride by the proportioning mix acid liquor of 4:2:1, in residue, add residue 0.25% Sodium hexametaphosphate 99 and 0.45% water glass again after stirring; The water bath with thermostatic control vibrator being finally placed in 40 DEG C vibrates 50min, filters, with distilled water by filter cake washing to neutral, dry and get final product; The formula (kg) of described Mushroom cultivation material is: chestnut shell 4.5, reed 2.5, corn cob 11, soybean meal 4.5, white lime 3, zeolite powder 9, powdered iron ore 12, magnesium powder 3, domestic refuse charing ash 8, brown sugar 4, potassium primary phosphate 0.5, calcium superphosphate 0.5, potassium humate 0.9, palm hull 4;

(2) take each raw material by the weight part of constitutive material, grain slag, slag are ground, then mix with cement, paddy ash, add appropriate water again to mix, be heated to 160 DEG C, be uniformly mixed 1.5min, then granulation, balling-up particle diameter is at 0.5-1mm, for subsequent use;

(3) Mushroom cultivation material after adding the modification of step (1) in step (2) compound and other residue constitutive materials, stir 4 minutes under 350 revs/min, then the material three-roll grinder grinding 1-2 hour that will be stirred, and then pours into a mould, vibrate; In the wet environment of room temperature, maintenance one week is carried out after building.

The concrete that the present invention obtains is in architectural process, and concrete there will not be burning, ftracture and the problem such as to come off, and waterproof durable, life-span is long, adds paddy ash, grain slag, slag, economize on resources in formula of the present invention, turn waste into wealth, there is larger market popularization value and application prospect.

Claims (3)

1. an anti-crack concrete, is characterized in that the weight part of its constitutive material is: cement 60-85, paddy ash 20-35, grain slag 15-20, slag 10-12, Mushroom cultivation material 30-40, vulkacit D 1.5-1.6, tripoly phosphate sodium STPP 0.4-0.6, polycarboxylate water-reducer 1-2, iron(ic) chloride 2.5-4.0, Viscotrol C 6-7, polyoxyethylene glycol 1-2, ethyl propenoate 1.2-1.5, calcium lignin sulphonate 1.5-2.0 and water are appropriate.

2. anti-crack concrete according to claim 1, is characterized in that the weight part of its constitutive material is: cement 75, paddy ash 28, grain slag 18, slag 11, Mushroom cultivation material 35, vulkacit D 1.6, tripoly phosphate sodium STPP 0.5, polycarboxylate water-reducer 1.5, iron(ic) chloride 3.5, Viscotrol C 6.5, polyoxyethylene glycol 1.5, ethyl propenoate 1.4, calcium lignin sulphonate 1.8 and water are appropriate.

3. a preparation method for anti-crack concrete as claimed in claim 1, is characterized in that comprising following content:

(1) modification of Mushroom cultivation material: dried under 80 DEG C of-90 DEG C of conditions by mushroom culture medium waste material by weight, is placed in charring furnace by the waste material after oven dry and under 600-650 DEG C of condition, carbonizes 2-3 hour, carbonization residue; Add after pulverizing residue 2-3 times amount acid properties-correcting agent, described sour properties-correcting agent be citric acid, acetate and hydrochloride by the proportioning mix acid liquor of 4:2:1, in residue, add residue 0.2-0.3% Sodium hexametaphosphate 99 and 0.4-0.5% water glass again after stirring; The water bath with thermostatic control vibrator being finally placed in 30-50 DEG C vibrates 40-60min, filters, with distilled water by filter cake washing to neutral, dry and get final product; The formula of described Mushroom cultivation material is: chestnut shell 4-5, reed 2-3, corn cob 10-12, soybean meal 4-5, white lime 2-4, zeolite powder 8-10, powdered iron ore 10-12, magnesium powder 2-4, domestic refuse carbonize grey 5-10, brown sugar 3-5, potassium primary phosphate 0.4-0.6, calcium superphosphate 0.5-0.6, potassium humate 0.8-1.0, palm hull 3-5;

(2) take each raw material by the weight part of constitutive material, grain slag, slag are ground, then mix with cement, paddy ash, add appropriate water again to mix, be heated to 150-180 DEG C, be uniformly mixed 1-2min, then granulation, balling-up particle diameter is at 0.5-1mm, for subsequent use;

(3) Mushroom cultivation material after adding the modification of step (1) in step (2) compound and other residue constitutive materials, 3-5 minute is stirred under 300-400 rev/min, the material three-roll grinder grinding 1-2 hour will be stirred again, then pours into a mould, vibrates; In the wet environment of room temperature, maintenance one week is carried out after building.