Slag micro-powder dry mixed mortar
Technical field
The present invention relates to a kind of premixing dry-mixed mortar material for building, specifically a kind of slag micro-powder dry mixed mortar.
Background technology
Along with the development of society, people improve constantly the requirement of construction quality, environmental requirement and civilized construction, and the advantage that is dry mixed mortar obtains more and more people's favor.
In prior art, the main gelling material of mortar is cement or gypsum, and the consumption of cement mostly is not less than 15% left and right, and the consumption of gypsum also is not less than 30%.Although slag micropowder also can be used on a small quantity, can only make cement together with cement clinker, flyash etc. and could use.
Summary of the invention
Technical assignment of the present invention is for above-mentioned the deficiencies in the prior art, and a kind of energy-conserving and environment-protective are provided, the slag micro-powder dry mixed mortar that the cost of material is low.
Technical assignment of the present invention is realized in the following manner: slag micro-powder dry mixed mortar is mixed by the batching of following weight proportion:
Slag micropowder 20-30 part
Flyash 5-10 part
Aggregate 60-75 part
Compound activator 0.3-0.5 part
Water-holding agent 0.01-0.03 part
Anti-fissuring agent 0.3-0.5 part.
In order to make it can better be applicable to exterior wall, slag micro-powder dry mixed mortar of the present invention can also be mixed by the batching of following weight proportion:
Slag micropowder 20-30 part
Flyash 5-10 part
Aggregate 60-75 part
Compound activator 0.3-0.5 part
Water-holding agent 0.01-0.03 part
Anti-fissuring agent 0.3-0.5 part.
Hydrophobizing agent 0.1-1 part.
Described hydrophobizing agent is polymkeric substance redispersible powder, sodium stearate or Zinic stearas.
The specific surface area of described slag micropowder is greater than 400m
2/ Kg.
Described flyash is the above flyash of one-level.
Described aggregate is the mixture of one or more materials in the pulverized particles of Machine-made Sand, river sand, water-granulated slag or building waste, and the fineness of aggregate is less than 4 millimeters.
Described compound activator is that weight ratio is that the water glass of 1: 1 and Sulfothiorine mixture or weight ratio are water glass and the calcium oxide mixture of 1: 1.
Described water-holding agent can be water-holding agent general in prior art, as polyvinyl alcohol, polyoxygenated alkanes etc., preferably use the mixture of one or more materials in methylcellulose gum, Vltra tears, hydroxyethylmethyl-cellulose or treated starch (as: organic phosphate starch, cationic starch, anionic starch, vinyl cyanide starch etc.).
Described anti-fissuring agent can be anti-fissuring agent general in prior art, as fibrous magnesium silicate, steel fiber, glass fibre etc., preferably uses xylon or polyacrylonitrile fibre.
The present invention is by adding exciting agent, water-holding agent and anti-fissuring agent etc., slag micropowder, this low activity activity of materials of flyash are improved, the condition of namely utilizing the reduction slag micropowders such as exciting agent, water-holding agent and anti-fissuring agent to react makes material (slag micropowder and flyash) form final mortar product by hydration reaction.
Slag micro-powder dry mixed mortar of the present invention compared with prior art has following outstanding beneficial effect:
(1) without cement or gypsum, directly take slag micropowder as gelling material, overcome in the prior art and slag micropowder must be made into the deficiency that cement is produced dry-mixed mortar again, the all technical of product meets the indices requirement in national sector standard fully, energy-conservation, reduction of discharging, cost are low, for the utilization of slag micropowder and flyash has increased a new way;
(2) all raw materials are environment-friendly materials, really accomplish nontoxicly, adapt to people to the requirement of environmental protection;
(3) various raw materials are commercially available common product, are easy to realize, cost is low.
Embodiment
With specific embodiment, slag micro-powder dry mixed mortar of the present invention is described in detail below.
Embodiment one (plastering on inner walls dry-mixed mortar):
Formula:
Slag micropowder: 25Kg flyash: 7Kg
Machine-made Sand: 68Kg (fineness is less than 4mm) compound activator: 0.4Kg
Vltra tears: 0.015Kg xylon: 0.4Kg
Described compound activator is that weight ratio is water glass and the Sulfothiorine mixture of 1: 1.
The preparation method:
After the various raw materials of above-mentioned formula accurate measurement, mixing, positive mechanical formula stir and namely get target product.
Embodiment two (external wall plastering dry-mixed mortar):
Formula:
Slag micropowder: 25Kg flyash: 7Kg
Machine-made Sand: 68Kg (fineness is less than 4mm) compound activator: 0.4Kg
Vltra tears: 0.015Kg xylon: 0.4Kg
Sodium stearate: 0.6Kg
Described compound activator is that weight ratio is 1: 1 water glass and Sulfothiorine mixture.
The preparation method:
After the various raw materials of above-mentioned formula accurate measurement, mixing, positive mechanical formula stir and namely get target product.
In construction process, water consumption is the standard water consumption calculating of 150 ± 5 millimeters by the slip diffusion diameter.Should metope is fully moistening before construction, material is fully mixed, thereby produce better intensity.
According to the standard method used of China's building trade, to technical feature test result such as the following table of above-described embodiment:
Embodiment three (plastering on inner walls dry-mixed mortar):
Formula:
Slag micropowder: 22Kg flyash: 9Kg
River sand: 73Kg (fineness is less than 4mm) compound activator: 0.35Kg
Organic phosphate starch: 0.012Kg polyacrylonitrile fibre: 0.45Kg
Described compound activator is that weight ratio is water glass and the calcium oxide mixture of 1: 1.
The preparation method:
After the various raw materials of above-mentioned formula accurate measurement, mixing, positive mechanical formula stir and namely get target product.
Embodiment four (external wall plastering dry-mixed mortar):
Formula:
Slag micropowder: 22Kg flyash: 9Kg
River sand: 73Kg (fineness is less than 4mm) compound activator: 0.35Kg
Organic phosphate starch: 0.012Kg polyacrylonitrile fibre: 0.45Kg
Zinic stearas: 0.4Kg
Described compound activator is that weight ratio is water glass and the calcium oxide mixture of 1: 1.
The preparation method:
After the various raw materials of above-mentioned formula accurate measurement, mixing, positive mechanical formula stir and namely get target product.
Embodiment five (plastering on inner walls dry-mixed mortar):
Formula:
Slag micropowder: 28Kg flyash: 6Kg
Building waste pulverized particles: 62Kg (fineness is less than 4mm) compound activator: 0.45Kg
Hydroxyethylmethyl-cellulose: 0.028Kg polyacrylonitrile fibre: 0.35Kg
Described compound activator is that weight ratio is 1: 1 water glass and Sulfothiorine mixture.
The preparation method:
After the various raw materials of above-mentioned formula accurate measurement, mixing, positive mechanical formula stir and namely get target product.
Embodiment six (external wall plastering dry-mixed mortar):
Formula:
Slag micropowder: 28Kg flyash: 6Kg
Building waste pulverized particles: 62Kg (fineness is less than 4mm) compound activator: 0.45Kg
Hydroxyethylmethyl-cellulose: 0.028Kg polyacrylonitrile fibre: 0.35Kg
Polymkeric substance redispersible powder: 0.8Kg
Described compound activator is that weight ratio is 1: 1 water glass and Sulfothiorine mixture.
The preparation method:
After the various raw materials of above-mentioned formula accurate measurement, mixing, positive mechanical formula stir and namely get target product.