Fertilizing hydroactive pavement for the geobiochemical cycle of photosynthesis

  1. Home
  2. Interface

Patent Details

Publication Number
PT103488
BRPI0701729
Priority Date
2006-05-24
Publication Date
2007-11-30
International Patent Classification
E01C5/06

Figures

figura
Schematic representation of manual earth removal for paver laying.

Abstract

The present invention is concerned with self-locking nonslip paver blocks, laid without using adhesive mortar, highly porous, based on magnesium phosphate cement, manufactured at room temperature by mould casting. The paver blocks combine the typical characteristics of the material (chemical composition, structure, easy and versatile manufacture), the multi-functional characteristics due to parts design (shape, size, relief and self-locking) and high environmental sustainability, whilst presenting: (a) floor paving capacity in low-traffic urban and rural areas, (b) permeability to gases and liquids, promoting underlying soil aeration and hydration and groundwater reserve preservation, and (c) ability to constitute a device for deep soil delivery of nutrient substances activated by rainfall or irrigation water. The paver block can incorporate fibers or particles (including wastes), homogeneously or in gradient, for improved biocompatibility and timed biodegradation.

Innovative aspects & main advantages

This is a line of permeable paver blocks that explores the easy production of magnesium phosphate based porous ceramic artefacts. The paver blocks present adequate mechanical strength for light traffic, as required for walkways, driveways and patios, while being simultaneously air and water permeable, resulting in “breathing pavements” with drainage capability. Being magnesium phosphate based, these materials are environment-friendly (magnesium is the central ion in the chlorophyll molecule) and can be impregnated with nutrients or other soil fertilizers for agricultural applications.

Applications

The paver blocks can be used in urban and rural areas and can be impregnated with suitable nutrients or fertilizers in agricultural applications, enabling delayed delivery in response to raindrop or scheduled watering. The ease of production enables the inclusion of interlocking features that result in a “Lego”-type construction requiring no use of mortar.

Inventors

Segadães, Ana; Morelli, Márcio; Zurba, Nadia

Our Inventors

foto Ana Maria B C Segadães

Ana Maria B C Segadães

Retired Professor

Applicant

Fundação Unversidade Federal de São Carlos
Universidade de Aveiro

Groups Involved

G4 - Renewable Materials and Circular Economy

Share this Patent

Related Patents

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".


Privacy and Cookie Policy

Personal data

CICECO-Aveiro Institute of Materials respects your privacy, ensuring confidentiality of personal data you share with the institution through this way, not collecting any personal information about you without your consent, under the terms required by General Data Protection Regulations (RGPD).

The data collected in forms are intended exclusively for processing user requests and will not be used for any other purpose, always safeguarding their confidentiality, under the terms of the protection conferred by the aforementioned regulation.

The collection and processing of data is the responsibility of CICECO and its storage is properly protected, only authorized CICECO employees can access the information within the scope of their functions, always being clear in the respective collection forms the purposes for which they are intended. The remaining issues to be considered in this matter will be handled by the University of Aveiro in accordance with the regime established by the GDPR.

Cookies policy

Cookies are small files with alphanumeric information that are stored on your computer's hard drive by your browser and are intended to improve the user experience and enhance website navigation.

Collection and use of technical information

The cookies used on CICECO are anonymous, and no information about our users that allows their personal identification is stored in them.

The technical information recorded consists of:

  • iP (Internet Protocol) address of the visitor;
  • the type of internet browser used by the website visitor and the respective operating system used;
  • the date and time of the consultation;
  • the pages visited on the site and the documents downloaded
  • The technical information collected is used for statistical purposes only.

Cookies used

Session cookies

These cookies are used to record user preferences, such as the language in which websites are displayed or to maintain authenticated user sessions, and are automatically deleted when the browser is closed.

Persistent cookies

These cookies store information that is needed between sessions. For example, a persistent cookie is set to record that you have been made aware of the cookie policy so that the message regarding this policy is not shown again the next time you visit the website. This cookie remains on the computer until it reaches its expiry date or is deleted by the user.

Data protection

The present privacy policy covers the Information System of the University of Aveiro (SIUA), governed by the General Data Protection Regulations (RGPD) Regulation (EU) No. 2016/679, of April 27th, 2016.

Data Protection Officer

The University of Aveiro has a Data Protection Officer (DPO), who ensures compliance of the processing of personal data with the legislation in force, and is available through the following email address epd@ua.pt.

Close