CN104671998A - Slow-condensing type fertilizer-retention agent for green-growing sulphoaluminate cement concrete - Google Patents

Slow-condensing type fertilizer-retention agent for green-growing sulphoaluminate cement concrete Download PDF

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Publication number
CN104671998A
CN104671998A CN201510051009.XA CN201510051009A CN104671998A CN 104671998 A CN104671998 A CN 104671998A CN 201510051009 A CN201510051009 A CN 201510051009A CN 104671998 A CN104671998 A CN 104671998A
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China
Prior art keywords
type fertilizer
slow
growing
retention agent
weight
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CN201510051009.XA
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Chinese (zh)
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CN104671998B (en
Inventor
宫晨琛
王衍生
孙科科
李恩波
张九阳
王守德
芦令超
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University of Jinan
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University of Jinan
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Priority to CN201510051009.XA priority Critical patent/CN104671998B/en
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Publication of CN104671998B publication Critical patent/CN104671998B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/16—Acids or salts thereof containing phosphorus in the anion, e.g. phosphates
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
    • C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates

Abstract

The invention discloses a slow-condensing type fertilizer-retention agent for green-growing sulphoaluminate cement concrete. The slow-condensing type fertilizer-retention agent for green-growing sulphoaluminate cement concrete is prepared by the following steps: uniformly agitating 30 to 70% by weight of ground phosphate rock, 10 to 50% by weight of peat soil, 3 to 10% by weight of arsenic sandstone area, and 10 to 30% by weight of water; granulating into balls, wherein the diameter is controlled to be 3 to 8mm; drying to be constant weight to obtain the slow-condensing type fertilizer-retention agent. According to the slow-condensing type fertilizer-retention agent, dissoluble phosphorus can react with a sulphoaluminate cement component to prolong the condensing time, which is beneficial for regulating and controlling of hydrating and hardening process of cement; meanwhile, phosphorus can be slowly released, so as to provide nutrients to plants growing in the green-growing concrete in the growth period; the raw materials are easily obtained, and the cost is low.

Description

A kind of for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement
Technical field
The present invention relates to a kind of for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, belong to novel environment friendly building materials technology field.
Background technology
Aluminosulfate cement is one of high-early-strength type special cement, and the concrete for plant growth utilizing it to prepare has the advantages such as inner basicity is low, short construction period, but due to preservation capacity of water and fertility poor, setting and harden adjustability is poor, limits it and applies on a large scale.
Ground phosphate rock is as after incorporation of fertilizerin the soil, and the effect of the main weak acid relying on the acidity in soil, soil microorganisms, crop root to secrete etc. transforms, and utilization absorbed by crops, fertilizer efficiency is lasting.Therefore, under the synergy of weakly acidic feldspathic sandstone and peat soil, in vegetation type aluminosulfate cement concrete in ground phosphate rock titanium pigment not only for plant provides one of three large nutritive elements---the phosphorus needed for its growth, and participate in the early hydration of aluminosulfate cement, delay its hydration and hardening process.
Summary of the invention
The object of the present invention is to provide for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, the titanium pigment of its release not only reacts with aluminosulfate cement component, delay its hydration and hardening process, and under the slightly acidic effect of feldspathic sandstone and peat soil slow releasing phosphorus, for plant-growth provides nutrient.
Technical scheme of the present invention is as follows:
A kind of for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, its preparation process is as follows: weight fraction is respectively 30 ~ 70% ground phosphate rock, 10 ~ 50% peat soils, 3 ~ 10% feldspathic sandstones and 10 ~ 30% water and stirs, and granulation balling-up, the diameter control of ball is at 3 ~ 8mm, then be dried to constant weight, obtain retardation setting type fertilizer-keeping agent.
Described ground phosphate rock main component of the present invention is Ca 3(PO4) 2, specific surface area is between 300 ~ 400m 2/ kg; Feldspathic sandstone main component is quartz, calcite and montmorillonite, and specific surface area is between 300 ~ 420m 2/ kg; In peat soil, organic content is 40 ~ 60%, pH is 5.0 ~ 6.7.
Outstanding advantages of the present invention is:
(1) titanium pigment of retardation setting type fertilizer-keeping agent release disclosed by the invention can react with aluminosulfate cement component, extends its time of coagulation, is conducive to regulating and controlling the hydration and hardening process of cement;
(2) retardation setting type fertilizer-keeping agent disclosed by the invention can slow releasing phosphorus, in concrete for plant growth, plant-growth provides nutrient for a long time;
(3) feldspathic sandstone in retardation setting type fertilizer-keeping agent disclosed by the invention and peat soil are all one of soil type, are concrete for plant growth internal invention edatope, are conducive to plant root system development growth;
(4) raw material is easy to get, with low cost.
Embodiment
Embodiment 1
A kind of for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, its preparation process is as follows: weight fraction is respectively 50% ground phosphate rock, 30% peat soil, 9% feldspathic sandstone and 11% water and stirs, and to be a granulated into diameter be 3.5mm ball, then be dried to constant weight, obtain retardation setting type fertilizer-keeping agent.
Retardation setting type fertilizer-keeping agent and aluminosulfate cement mixed with 1:4 mass ratio and stir, after 25 minutes, test block is unhardened, records ultimate compression strength and reach 12.3MPa after 30 minutes.30 days nitrogen cumulative release amounts of test block being soaked reach 15.1%.
Embodiment 2
A kind of for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, its preparation process is as follows: weight fraction is respectively 57% ground phosphate rock, 20% peat soil, 9% feldspathic sandstone and 14% water and stirs, and to be a granulated into diameter be 4.5mm ball, then be dried to constant weight, obtain retardation setting type fertilizer-keeping agent.
Retardation setting type fertilizer-keeping agent and aluminosulfate cement mixed with 1:4 mass ratio and stir, after 25 minutes, test block is unhardened, records ultimate compression strength and reach 8.6MPa after 30 minutes.30 days nitrogen cumulative release amounts of test block being soaked reach 27.1%.
Embodiment 3
A kind of for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, its preparation process is as follows: weight fraction is respectively 62% ground phosphate rock, 11% peat soil, 7% feldspathic sandstone and 20% water and stirs, and to be a granulated into diameter be 7.5mm ball, then be dried to constant weight, obtain retardation setting type fertilizer-keeping agent.
Retardation setting type fertilizer-keeping agent and aluminosulfate cement mixed with 1:4 mass ratio and stir, after 25 minutes, test block is unhardened, records ultimate compression strength and reach 5.2MPa after 30 minutes.30 days nitrogen cumulative release amounts of test block being soaked reach 28.6%.

Claims (5)

1., for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, its feature stirs parts by weight being respectively 30 ~ 70% ground phosphate rock, 10 ~ 50% peat soils, 3 ~ 10% feldspathic sandstones and 10 ~ 30% water, and granulation balling-up, diameter control is at 3 ~ 8mm.
2. be then dried to constant weight, obtain retardation setting type fertilizer-keeping agent.
3. one according to claim 1 is used for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, it is characterized in that described ground phosphate rock main component is Ca 3(PO4) 2, specific surface area is between 300 ~ 400m 2/ kg.
4. one according to claim 1 is used for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, and it is characterized in that described feldspathic sandstone main component is for quartz, calcite and montmorillonite, specific surface area is between 300 ~ 420m 2/ kg.
5. one according to claim 1 is used for the concrete retardation setting type fertilizer-keeping agent of vegetation type aluminosulfate cement, and it is characterized in that in described peat soil that organic content is 40 ~ 60%, pH is 5.0 ~ 6.7.
CN201510051009.XA 2015-02-02 2015-02-02 A kind of retardation setting type fertilizer-keeping agent for vegetation type sulphate aluminium cement concrete Expired - Fee Related CN104671998B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510051009.XA CN104671998B (en) 2015-02-02 2015-02-02 A kind of retardation setting type fertilizer-keeping agent for vegetation type sulphate aluminium cement concrete

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Application Number Priority Date Filing Date Title
CN201510051009.XA CN104671998B (en) 2015-02-02 2015-02-02 A kind of retardation setting type fertilizer-keeping agent for vegetation type sulphate aluminium cement concrete

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CN104671998A true CN104671998A (en) 2015-06-03
CN104671998B CN104671998B (en) 2017-12-15

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN105036665A (en) * 2015-07-21 2015-11-11 济南大学 Water and fertilizer retention type vegetative cement-based material
CN105036956A (en) * 2015-08-05 2015-11-11 杭州兴润筛网有限公司 Composite vegetation concrete greening additive
CN105237310A (en) * 2015-09-02 2016-01-13 济南大学 Plant culture medium for plant growth cement concrete
CN105993255A (en) * 2016-05-16 2016-10-12 中国神华能源股份有限公司 Method for improving soil quality
CN111019662A (en) * 2019-12-20 2020-04-17 华南理工大学 Soil water-retaining agent produced by using aluminum ash and preparation method thereof
CN112321226A (en) * 2020-10-22 2021-02-05 湖北工业大学 Plant-growing concrete material prepared by wet grinding of potassium feldspar and phosphate tailings and preparation method thereof

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105036665A (en) * 2015-07-21 2015-11-11 济南大学 Water and fertilizer retention type vegetative cement-based material
CN105036956A (en) * 2015-08-05 2015-11-11 杭州兴润筛网有限公司 Composite vegetation concrete greening additive
CN105036956B (en) * 2015-08-05 2018-09-14 杭州兴润筛网有限公司 Compound plant cover concrete green additive
CN105237310A (en) * 2015-09-02 2016-01-13 济南大学 Plant culture medium for plant growth cement concrete
CN105993255A (en) * 2016-05-16 2016-10-12 中国神华能源股份有限公司 Method for improving soil quality
CN111019662A (en) * 2019-12-20 2020-04-17 华南理工大学 Soil water-retaining agent produced by using aluminum ash and preparation method thereof
CN111019662B (en) * 2019-12-20 2022-05-24 华南理工大学 Soil water-retaining agent produced by using aluminum ash and preparation method thereof
CN112321226A (en) * 2020-10-22 2021-02-05 湖北工业大学 Plant-growing concrete material prepared by wet grinding of potassium feldspar and phosphate tailings and preparation method thereof
CN112321226B (en) * 2020-10-22 2022-07-05 湖北工业大学 Plant-growing concrete material prepared by wet grinding of potassium feldspar and phosphate tailings and preparation method thereof

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