阅读说明：本技术 一种掺杂疏浚土和牡蛎壳的生态水泥、混凝土及制备方法 (A kind of eco-cement, concrete and preparation method for adulterating dredging markets and oyster shell ) 是由 彭士涛 齐兆宇 郑天立 胡健波 于 2019-09-17 设计创作，主要内容包括：本发明提供掺杂疏浚土和牡蛎壳的生态水泥、混凝土及制备方法,涉及水工建筑材料与固体废弃物综合利用领域。混凝土的制备利用海洋海岸及内河航道工程产生的废弃物疏浚土,和贝类固体废弃物牡蛎壳,直接替代混凝土配合料中的部分水泥；充分利用了牡蛎壳质硬的特点,和疏浚土的天然资源；解决了环境污染问题,减少了废弃物处置的生态环境压力,并降低了混凝土成本,减少了碳排放。同时实现了废弃牡蛎壳和疏浚土的资源循环利用,且工艺简单,成本低廉,具有较强的市场应用前景及推广价值。(The present invention provides eco-cement, concrete and the preparation method of doping dredging markets and oyster shell, is related to Hydraulic materials and field of solid waste comprehensive utilization.The waste dredging markets and shellfish solid waste oyster shell for being prepared by ocean seashore and the generation of cruiseway engineering of concrete, the directly part of cement in substitution batching；Take full advantage of the natural resources of oyster chitin hard feature and dredging markets；It solves problem of environmental pollution, reduces the eco-environmental pressure of waste treatment, and reduce Cost of Concrete, reduce carbon emission.The resource circulation utilization of discarded oyster shell and dredging markets, and simple process and low cost are realized simultaneously, and there is stronger market application prospect and promotional value.)

1. a kind of eco-cement for adulterating dredging markets and oyster shell, which is characterized in that the eco-cement includes oyster shell, dredging Soil, cement, the mass percent of each component is respectively as follows: oyster shell 4.1-19.3%, dredging markets 8.9- in the eco-cement 34.1%, cement 54.2-85.3%.

2. a kind of eco-cement for adulterating dredging markets and oyster shell according to claim 1, which is characterized in that the oyster Discarded oyster shell of the shell under natural conditions or after artificial breeding.

3. a kind of eco-cement for adulterating dredging markets and oyster shell according to claim 1 or 2, which is characterized in that described Dredging markets generated discarded dredging markets during river and lake or ocean engineering construction and daily basin channel maintenance.

4. including the concrete of the eco-cement of the described in any item doping dredging markets of claim 1-3 and oyster shell, feature It is, the concrete includes eco-cement, water, sandstone, waterglass.

5. the preparation method of concrete as claimed in claim 4, which comprises the steps of:

S1, the oyster shell is ground to it is powdered；By dredging markets drying, pulverizes and be sieved；The dredging markets, oyster Shell, cement mixing, obtain eco-cement；

S2, after being sufficiently mixed eco-cement and sandstone, water is added and waterglass carries out mix and obtains concrete.

6. the preparation method of concrete according to claim 5, which is characterized in that the oyster shell is ground to 60-100 mesh It is powdered.

7. the preparation method of concrete according to claim 5 or 6, which is characterized in that the drying temperature of the dredging markets It is 105-110 DEG C, having a size of 0-5mm after sieving.

Technical field

The present invention relates to cement concrete technology of preparing and field of solid waste comprehensive utilization, and in particular to a kind of doping The eco-cement and preparation method of concrete of dredging markets and oyster shell.

Background technique

As China's marine resources development utilization and cruiseway grade promote the continuous fast development of construction, dredging markets are useless The yield of gurry is increasing, and the processing modes such as sunning landfill bring immense pressure to ecological environment.In addition, with ocean The continuous expansion of the seashell products market demand is substantially mentioned by the shellfish culture scale of representative and production and processing ability of oyster It rises, the oyster shell waste generated therewith also brings various environmental pollutions and security hidden trouble.At the same time, dredging markets and The a large amount of of oyster shell discard, and also belong to a kind of waste of resource.

Dredging markets are to carry out underwater earthwork evacuation with manpower or machinery at waters such as the deep river and lakes of dredging, broadening or digging Soil caused by engineering has the characteristics that particle is thin, bearing capacity is small.The main component of oyster shell is calcium salt (CaCO₃), there is matter Hard feature has stronger adsorption capacity because possessing natural porous surface abundant, also has certain bioactivity, hands over The effects of transducing power and catalytic decomposition.

Therefore, a kind of resource circulation utilization for being able to achieve discarded dredging markets and oyster shell is studied, there is ecology, environmental protection, section Energy and low-carbon, while eco-cement, concrete and the concrete system of the doping dredging markets and oyster shell reduced the production cost Preparation Method is of great significance.

Summary of the invention

The purpose of the present invention is to provide a kind of eco-cement, concrete and concrete systems for adulterating dredging markets and oyster shell Preparation Method, the waste dredging markets and shellfish solid waste oyster shell that ocean seashore and cruiseway engineering are generated, substitution Part of cement in batching realizes recycling for resource, reaches good ecological environment benefit.

A kind of eco-cement adulterating dredging markets and oyster shell, the eco-cement includes oyster shell, dredging markets, cement, The mass percent of each component is respectively as follows: oyster shell 4.1-19.3%, dredging markets 8.9-34.1%, cement in the eco-cement 54.2-85.3%.

Further, discarded oyster shell of the oyster shell under natural conditions or after artificial breeding.

Further, dredging markets institute during river and lake or ocean engineering construction and daily basin channel maintenance The discarded dredging markets generated.

The concrete of eco-cement including doping dredging markets and oyster shell, the concrete includes eco-cement, water, sand Stone, waterglass.

The preparation method of concrete, includes the following steps:

S1, the oyster shell is ground to it is powdered；By dredging markets drying, pulverizes and be sieved；It is the dredging markets, male Oyster shell, cement mixing, obtain eco-cement；

S2, after being sufficiently mixed eco-cement and sandstone, water is added and waterglass carries out mix and obtains concrete.

Further, it is powdered to be ground to 60-100 mesh for the oyster shell.

Further, the drying temperature of the dredging markets is 105-110 DEG C, having a size of 0-5mm after sieving.

The present invention have the characteristics that it is following and the utility model has the advantages that

1, a kind of eco-cement and concrete for adulterating dredging markets and oyster shell provided by the invention, using ocean seashore and The waste dredging markets and shellfish solid waste oyster shell that cruiseway engineering generates, directly in substitution batching Part of cement；Take full advantage of the natural resources of oyster chitin hard feature and dredging markets；Solve problem of environmental pollution, Reduce the eco-environmental pressure of waste treatment, and reduce Cost of Concrete, reduces carbon emission；

2, it is provided by the invention it is a kind of according to eco-cement prepare concrete, prepared concrete glue grittiness energy, Working performance (slump), mechanical property (compression strength), endurance quality etc., it is suitable with the property of normal concrete, together When realize the resource circulation utilizations of discarded oyster shell and dredging markets, and simple process and low cost, there is stronger market to answer With prospect and promotional value.

Detailed description of the invention

Fig. 1 be the embodiment of the present invention 1 in, oyster shell mass fraction be eco-cement gross mass 13.7% when, ecological water Influence diagram of the dredging markets volume to concrete crushing strength in mud；

Fig. 2 be the embodiment of the present invention 2 in, oyster shell mass fraction be eco-cement gross mass 11.3% when, ecological water Influence diagram of the dredging markets volume to concrete slump in mud；

Fig. 3 be the embodiment of the present invention 3 in, oyster shell mass fraction be eco-cement gross mass 8.1% when, eco-cement Influence diagram of the middle dredging markets volume to concrete crushing strength (mechanical property)；

Fig. 4 is in the embodiment of the present invention 4, and oyster shell mass fraction is the 15.0% of eco-cement gross mass, dredges soil property Measure 29.3% eco-cement that score is eco-cement gross mass, the shrinkage test result figure of made eco-concrete.

Specific embodiment

The present invention provides a kind of eco-cement for adulterating dredging markets and oyster shell, the eco-cement making material includes Oyster shell, dredging markets, cement, based on mass content, the eco-cement includes oyster shell 4.1-19.3%, dredging markets 8.9- 34.1%, cement 54.2-85.3%.

In the present invention, discarded oyster shell of the oyster shell under natural conditions or after artificial breeding；It is described to dredge Dredge soil generated discarded dredging markets during river and lake or ocean engineering construction and daily basin channel maintenance；The water Mud is using traditional cements product in the market.

According to the obtained concrete of eco-cement of doping dredging markets and oyster shell, the concrete include eco-cement, Water, sandstone, waterglass.

The preparation method of concrete, includes the following steps:

S1, that the oyster shell is ground to 60-100 mesh is powdered；By dredging markets drying, pulverizes and be sieved, it is described The drying temperature of dredging markets is 105-110 DEG C, having a size of 0-5mm after sieving；The dredging markets, oyster shell, cement mixing, obtain Eco-cement；

S2, after being sufficiently mixed eco-cement and sandstone, water is added and waterglass carries out mix and obtains concrete.

In order to further illustrate the present invention, below with reference to embodiment to a kind of doping dredging markets provided by the invention and oyster The eco-cement preparation method of shell is described in detail, but they cannot be interpreted as limiting the scope of the present invention.