{"id":9458,"date":"2026-08-14T10:46:00","date_gmt":"2026-08-14T03:46:00","guid":{"rendered":"https:\/\/giaanh.vn\/?post_type=kien-thuc&p=9458"},"modified":"2026-10-15T09:00:13","modified_gmt":"2026-10-15T02:00:13","slug":"fixing-non-metallic-linings-in-field-installation","status":"publish","type":"kien-thuc","link":"https:\/\/giaanh.vn\/en\/knowledge\/fixing-non-metallic-linings-field-installation-techniques\/","title":{"rendered":"Part 3: Fixing non-metallic linings: field installation techniques"},"content":{"rendered":"

A non-metallic lining may be made from the correct material but can still detach, fall off or separate from the supporting structure if the fixing method is unsuitable.<\/p>\n

For this material group, the failure point is often not the lining itself, but the attachment between the lining and the supporting structure.<\/p>\n

With adhesive bonding in particular, even a small area with insufficient adhesive at a tile corner can become the starting point for detachment.<\/p>\n

For this reason, installation needs to control substrate preparation, fixing method, installation procedure, mandatory waiting times and signs that can be checked directly in the field.<\/p>\n

1. Explanation of key technical terms used in this article<\/span><\/h2>\n

The following terms appear throughout the selection, installation and inspection of non-metallic linings.<\/p>\n

Five terms directly related to lining fixation<\/p>\n\n\n\n\n\n\n\n\n\n
Technical term<\/strong><\/th>\nMeaning<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Lining<\/strong><\/td>\nA wear-resistant material layer fixed to the supporting structure<\/td>\n<\/tr>\n
Peel<\/strong><\/td>\nAn unfavorable loading mode in an adhesive joint, typically occurring at lining corners<\/td>\n<\/tr>\n
Shear in an adhesive joint<\/strong><\/td>\nA more favorable loading mode, typically occurring in the central area of a tile or plate<\/td>\n<\/tr>\n
Mandatory waiting time<\/strong><\/td>\nRequired material waiting time that cannot be shortened simply by increasing manpower<\/td>\n<\/tr>\n
Expanded metal mesh<\/strong><\/td>\nSteel mesh fixed to a wall to retain cast, trowelled or sprayed lining material<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

In addition to the fixing mechanism, non-metallic linings also involve several terms related to how the material performs on the equipment.<\/p>\n\n\n\n\n\n\n\n\n
Technical term<\/strong><\/th>\nMeaning<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Slide promotion<\/strong><\/td>\nHelping bulk material slide instead of adhering to the surface<\/td>\n<\/tr>\n
Material adhesion<\/strong><\/td>\nBulk material accumulates on the surface and obstructs flow<\/td>\n<\/tr>\n
Interface<\/strong><\/td>\nLocation where two material groups meet on the same component<\/td>\n<\/tr>\n
Upper temperature limit<\/strong><\/td>\nTemperature above which the material group loses the required operating properties<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

In this article, the term lining<\/strong> is used instead of coating<\/strong>.<\/p>\n

The word coating<\/em> may suggest a thin paint-like layer, while this article refers to wear protection systems that are fixed to or formed on a supporting structure using several different mechanisms.<\/p>\n

2. Four fixing methods and how to select them<\/span><\/h2>\n

Non-metallic linings are not fixed to the supporting structure using a single method.<\/p>\n

Site conditions, equipment geometry, temperature, impact, removal requirements and accessibility can all affect the fixing solution.<\/p>\n

2.1. Four main fixing methods<\/span><\/h3>\n\n\n\n\n\n\n\n\n
No.<\/strong><\/th>\nFixing method<\/strong><\/th>\nWhen used<\/strong><\/th>\nCommon mistake<\/strong><\/th>\nPossible consequence<\/strong><\/th>\n<\/tr>\n<\/thead>\n
1<\/strong><\/td>\nMonolithic casting, trowelling or spraying<\/td>\nLarge areas, complex geometry, fewer joints required, on-site repair required<\/td>\nIncorrect mesh spacing or incorrect distance between mesh and wall<\/td>\nLining may separate from the substrate<\/td>\n<\/tr>\n
2<\/strong><\/td>\nRear-side weld studs<\/td>\nRemovable lining required, thin plates<\/td>\nStud head exposed to material flow<\/td>\nStud head may wear first and the lining may loosen<\/td>\n<\/tr>\n
3<\/strong><\/td>\nAdhesive bonding<\/td>\nFlat surface, suitable temperature, no severe impact<\/td>\nInsufficient adhesive at the four corners<\/td>\nDetachment starts from the corners<\/td>\n<\/tr>\n
4<\/strong><\/td>\nWelded steel rings<\/td>\nImpact resistance required, higher-temperature conditions<\/td>\nUnsuitable tack welding<\/td>\nLining may crack due to heat<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The order above reflects the frequency of occurrence in the project records used as the source. It is not a general industry usage ranking.<\/p>\n

One advantage of monolithic systems in suitable locations is the reduction in the number of joints.<\/p>\n

Joints are locations where material flow can act directly on gaps or edges. Therefore, where geometry and operating conditions allow, reducing the number of joints also reduces one group of potential failure points.<\/p>\n

2.2. Selecting the method according to actual conditions<\/span><\/h3>\n

The table below provides initial guidance before detailed design and installation.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Condition<\/strong><\/th>\nMethod to consider<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Large area, complex geometry<\/td>\nMonolithic casting<\/td>\n<\/tr>\n
Removal required for maintenance<\/td>\nWeld studs<\/td>\n<\/tr>\n
Flat surface, suitable temperature, no severe impact<\/td>\nAdhesive bonding<\/td>\n<\/tr>\n
Severe impact<\/td>\nWelded steel rings or consider another material group<\/td>\n<\/tr>\n
High temperature<\/td>\nMonolithic lining or a suitable mechanical fixing solution<\/td>\n<\/tr>\n
Thin plate, adhesive bonding not possible<\/td>\nWeld studs<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

This table is intended for initial guidance and does not replace assessment of the actual site conditions.<\/p>\n

A single field condition can eliminate an entire fixing method. For example, if there is no rear-side access, a weld-stud solution may no longer be practical even if the other conditions are suitable.<\/p>\n

3. Corner detachment is directly related to the loading state of the adhesive joint<\/span><\/h2>\n

At the center of a lining tile, the load is distributed over a larger area and the adhesive is mainly subjected to shear.<\/p>\n

At the corner, the condition changes. The adhesive is subjected to peel from multiple directions, which is a less favorable loading mode for the bonded joint.<\/p>\n

Insufficient adhesive at a corner therefore does more than reduce a small portion of the bonded area. The void occurs precisely in a sensitive area of the joint.<\/p>\n

Even a corner area without adhesive that is only about the size of a fingertip can become the starting point for the entire tile to detach after a period of operation.<\/p>\n

When a lining falls off, the attachment between the lining and the supporting structure should be checked before concluding that the lining material itself is defective.<\/p>\n

4. Monolithic casting, trowelling or spraying<\/span><\/h2>\n

With monolithic methods, bond quality depends directly on substrate preparation, mesh arrangement, material mixing and curing control.<\/p>\n

4.1. Substrate preparation, mixing and installation<\/span><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Control item<\/strong><\/th>\nRequirement<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Steel substrate preparation<\/strong><\/td>\nWeld expanded metal mesh to the wall, with a 3 to 5 mm gap from the wall for a 20 to 25 mm lining thickness, and mesh-retaining weld points spaced 250 to 300 mm apart<\/td>\n<\/tr>\n
Concrete substrate preparation<\/strong><\/td>\nDo not use the same preparation method as for steel walls; the surface needs to be thoroughly wetted before trowelling<\/td>\n<\/tr>\n
Dry mixing<\/strong><\/td>\nForced-action mixer at 40 rpm; dry mix powder and reinforcing fibers for at least 1 minute before adding water<\/td>\n<\/tr>\n
Mixing water<\/strong><\/td>\n10 to 25 \u00b0C, quantity according to the exact material grade<\/td>\n<\/tr>\n
Wet mixing<\/strong><\/td>\n4 to 8 minutes depending on the material system<\/td>\n<\/tr>\n
Installation temperature<\/strong><\/td>\n10 to 30 \u00b0C; stop installation if the structure or ambient air is below 5 \u00b0C<\/td>\n<\/tr>\n
After finishing<\/strong><\/td>\nSeal in moisture within 60 minutes after finishing<\/td>\n<\/tr>\n
Cold curing<\/strong><\/td>\nMinimum 24 hours at 20 \u00b0C before drying<\/td>\n<\/tr>\n
Acceptable sign<\/strong><\/td>\nContinuous lining, no voids, solid sound when lightly tapped<\/td>\n<\/tr>\n
Sign requiring corrective action<\/strong><\/td>\nHollow sound when tapped, indicating a void or unsuitable bonding area<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

One issue that needs to be controlled from the preparation stage is mesh positioned directly against the wall.<\/p>\n

If the required gap is lost, the material may not fully penetrate behind the mesh. The base of the lining may then fail to form correctly and become a location where separation from the substrate begins.<\/p>\n

Values such as mesh spacing, water quantity, mixing time and installation conditions must be checked against the exact material grade being used.<\/p>\n

4.2. Moisture sealing after finishing<\/span><\/h3>\n

After the surface is finished, the lining needs to be moisture-sealed within the specified period.<\/p>\n

If the surface begins to dry before this step is performed, water retention during curing may be affected.<\/p>\n

This is a mandatory waiting point governed by the material reaction. Adding more manpower does not make this process occur faster.<\/p>\n

4.3. Three requirements that need to be determined before mixing<\/span><\/h3>\n

Divide the installation area<\/h4>\n

Large surfaces should be divided into installation sections rather than completed continuously as one large area.<\/p>\n

The material shrinks during curing. Dividing the area helps control where stress accumulates.<\/p>\n

Provide expansion joints<\/h4>\n

According to the documentation being used, where the operating temperature exceeds 50 \u00b0C, an expansion joint should be provided with a 5 mm rigid foam strip.<\/p>\n

The reason is the difference in thermal expansion between the steel structure and the lining. The two materials do not change dimensions at the same rate as temperature changes.<\/p>\n

The reinforcing steel mesh must be cut along the joint line. If the mesh remains continuous across the joint, stress continues to transfer into the adjacent area and the joint cannot perform its intended function.<\/p>\n

Provide edge-retaining strips<\/h4>\n

At the boundary between lined and unlined areas, as well as at termination edges, a suitable steel retaining strip should be provided.<\/p>\n

If the lining tapers down toward the edge, that location can become the starting point for detachment.<\/p>\n

5. Initial heat-up curve after installation<\/span><\/h2>\n

For heated equipment, once the material has completed the required cold-curing period, the first heat-up should not go directly to operating temperature.<\/p>\n\n\n\n\n\n\n\n\n
Stage<\/strong><\/th>\nRate and hold point<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Initial heat-up<\/strong><\/td>\nMaximum 40 \u00b0C\/hour up to 150 \u00b0C<\/td>\n<\/tr>\n
Holding<\/strong><\/td>\nHold at 150 \u00b0C for 12 hours<\/td>\n<\/tr>\n
Further heat-up<\/strong><\/td>\nMaximum 100 \u00b0C\/hour up to operating temperature<\/td>\n<\/tr>\n
Subsequent operation<\/strong><\/td>\nAbove 150 \u00b0C, maximum temperature change of 40 \u00b0C\/hour<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The 12-hour holding period needs to be included in the operating plan.<\/p>\n

If the temperature rises too quickly while moisture remains inside the lining, steam may form suddenly and cause explosive spalling during the first start-up.<\/p>\n

The schedule therefore needs to include:<\/p>\n

    \n
  • cold-curing time<\/li>\n
  • drying time<\/li>\n
  • holding time<\/li>\n
  • heat-up time to operating temperature<\/li>\n<\/ul>\n

    Actual installation duration includes more than only the time spent trowelling or spraying the material.<\/p>\n

    6. Rear-side weld studs<\/span><\/h2>\n

    With this method, control points focus on connection dimensions, weld condition and the position of the bolt or stud head relative to the working surface.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
    Control item<\/strong><\/th>\nRequirement<\/strong><\/th>\n<\/tr>\n<\/thead>\n
    Method<\/strong><\/td>\nWeld the stud foot to the rear side of the backing plate, then install and tighten the lining plate<\/td>\n<\/tr>\n
    Anchor diameter<\/strong><\/td>\nMinimum 12 mm<\/td>\n<\/tr>\n
    For diameters above 12.5 mm<\/strong><\/td>\nManual welding around the stud foot using low-hydrogen welding consumables<\/td>\n<\/tr>\n
    Plug welding through holes<\/strong><\/td>\nMinimum hole diameter 25 mm, hole spacing 300 to 600 mm<\/td>\n<\/tr>\n
    Plug-weld limit<\/strong><\/td>\nWeld metal stops at least 3 mm below the hard-facing interface<\/td>\n<\/tr>\n
    Tightening torque<\/strong><\/td>\nRefer to stud size and applicable documentation<\/td>\n<\/tr>\n
    Acceptable sign<\/strong><\/td>\nStud head lies below the working surface and cannot be felt protruding<\/td>\n<\/tr>\n
    Sign requiring corrective action<\/strong><\/td>\nStud head is exposed to material flow<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    The 3 mm clearance at the plug-weld location is an important control point.<\/p>\n

    If the weld metal extends too high and mixes into the hard-facing area, the interface can become a location that wears faster than the surrounding surface.<\/p>\n

    7. Adhesive bonding<\/span><\/h2>\n

    For adhesive bonding, mixing, adhesive thickness, usable time and, especially, full coverage at all four corners of the lining tile need to be controlled together.<\/p>\n

    7.1. Mixing, spreading and laying the tiles<\/span><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Control item<\/strong><\/th>\nRequirement<\/strong><\/th>\n<\/tr>\n<\/thead>\n
    Mixing ratio<\/strong><\/td>\nTwo components at 1:1 by weight<\/td>\n<\/tr>\n
    Mixing time<\/strong><\/td>\nStir slowly for 5 to 10 minutes, scraping material up from the bottom of the tray<\/td>\n<\/tr>\n
    Acceptable mixing sign<\/strong><\/td>\nAdhesive becomes a single uniform color and flows in a continuous stream when the tool is lifted<\/td>\n<\/tr>\n
    Sign requiring corrective action<\/strong><\/td>\nContinue mixing if color streaks remain; discard if the adhesive forms strings; do not add solvent<\/td>\n<\/tr>\n
    Adhesive application<\/strong><\/td>\nApply to the rear side of the tile in one direction and fully cover all four corners<\/td>\n<\/tr>\n
    Acceptable application sign<\/strong><\/td>\nTile material is not visible through the adhesive; test lifting shows uniform adhesive contact at all four corners<\/td>\n<\/tr>\n
    Deviation requiring attention<\/strong><\/td>\nVoids at the corners<\/td>\n<\/tr>\n
    Adhesive thickness<\/strong><\/td>\n3 mm notched trowel; final adhesive film after pressing remains 2 to 3 mm<\/td>\n<\/tr>\n
    Pot life<\/strong><\/td>\nUse within 45 minutes after mixing<\/td>\n<\/tr>\n
    Waiting time before nearby welding<\/strong><\/td>\nMinimum 2 hours before placing steel washers and tack welding<\/td>\n<\/tr>\n
    Tile arrangement<\/strong><\/td>\nStagger joints between rows; do not align joints continuously<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Full adhesive coverage at the four corners is particularly important because these are the areas where the bonded joint is subjected to peel.<\/p>\n

    7.2. The 45-minute and 2-hour limits apply to different activities<\/span><\/h3>\n

    The 45-minute limit<\/strong> is the pot life of the adhesive batch after mixing.<\/p>\n

    The 2-hour limit<\/strong> is the minimum waiting time before welding near the newly bonded area.<\/p>\n

    If the batch is mixed in too large a quantity, the adhesive may exceed its pot life before installation is complete.<\/p>\n

    If welding is carried out too early to shorten the schedule, heat from welding may affect the adhesive before it has had sufficient time to stabilize.<\/p>\n

    The batch size should therefore match the area that can be completed within the adhesive pot life, while nearby welding should be scheduled for the following stage.<\/p>\n

    8. Welded steel rings<\/span><\/h2>\n

    This method uses short tack welds with cooling intervals to limit heat input to the surrounding material.<\/p>\n\n\n\n\n\n\n\n\n\n
    Control item<\/strong><\/th>\nRequirement<\/strong><\/th>\n<\/tr>\n<\/thead>\n
    Method<\/strong><\/td>\nUse short tack welds and allow cooling between welds<\/td>\n<\/tr>\n
    Tack-weld length<\/strong><\/td>\nRefer to the applicable documentation<\/td>\n<\/tr>\n
    Cooling time between welds<\/strong><\/td>\nRefer to the applicable documentation<\/td>\n<\/tr>\n
    Acceptable sign<\/strong><\/td>\nNo cracking around the steel ring; ring remains secure when moved by hand<\/td>\n<\/tr>\n
    Sign requiring corrective action<\/strong><\/td>\nMaterial cracks around the ring after thermal exposure<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    If cracking appears around the welded location, the connection needs to be handled according to the applicable procedure.<\/p>\n

    The fact that the steel ring remains attached to the structure is not, by itself, enough to conclude that the location is acceptable.<\/p>\n

    9. Mandatory waiting times cannot be shortened simply by increasing manpower<\/span><\/h2>\n

    The four fixing methods include steps that depend on material reaction or stabilization.<\/p>\n

    Important waiting periods include:<\/p>\n

      \n
    • adhesive pot life<\/li>\n
    • waiting time before nearby welding<\/li>\n
    • curing time<\/li>\n
    • moisture-sealing time<\/li>\n
    • drying and holding time<\/li>\n<\/ul>\n

      These periods cannot be shortened simply by increasing the number of workers.<\/p>\n

      If available downtime is shorter than expected, the work scope should be reconsidered rather than shortening mandatory material waiting periods without technical justification.<\/p>\n

      Waiting times therefore need to be identified during installation planning, not after work has already started.<\/p>\n

      10. Items that can be checked after installation without removing the lining<\/span><\/h2>\n

      The four fixing methods allow several simple checks to be performed directly in the field.<\/p>\n\n\n\n\n\n\n\n\n
      Method<\/strong><\/th>\nInspection method<\/strong><\/th>\nSign requiring corrective action<\/strong><\/th>\n<\/tr>\n<\/thead>\n
      Monolithic casting, trowelling or spraying<\/strong><\/td>\nLightly tap the surface<\/td>\nHollow sound<\/td>\n<\/tr>\n
      Rear-side weld studs<\/strong><\/td>\nRun a hand across the lining surface<\/td>\nProtruding stud head can be felt<\/td>\n<\/tr>\n
      Adhesive bonding<\/strong><\/td>\nTap along the tile edge<\/td>\nEdge sound differs clearly from the center<\/td>\n<\/tr>\n
      Welded steel rings<\/strong><\/td>\nMove the ring by hand<\/td>\nRing is loose or cracking appears around it<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      These inspections do not require lining removal and can help identify certain attachment deviations before the equipment returns to operation.<\/p>\n

      However, the result only reflects the connection condition at the time of inspection. It is not a method for predicting the final service life of the lining.<\/p>\n

      11. Acceptable signs and corrective-action signs should be described in observable terms<\/span><\/h2>\n

      An installation instruction is only truly usable in the field when the person performing the work can determine what constitutes an acceptable condition and what requires correction.<\/p>\n

      For example, an instruction such as \u201cmix the adhesive thoroughly\u201d is not sufficient for verifying the operation.<\/p>\n

      It should state:<\/p>\n

        \n
      • how long to mix<\/li>\n
      • the color of the mixture after mixing<\/li>\n
      • how the adhesive behaves when the tool is lifted<\/li>\n
      • signs indicating that the adhesive batch is no longer usable<\/li>\n<\/ul>\n

        This approach converts installation experience into observable criteria that installers, supervisors and engineering personnel can inspect and compare together.<\/p>\n

        The same principle applies to hollow sounds in monolithic linings, protruding stud heads and the condition of steel rings after welding.<\/p>\n

        12. Responsibilities during lining installation<\/span><\/h2>\n

        Each stage should have a clearly defined responsible party so that the material solution and actual installation conditions are considered together.<\/p>\n\n\n\n\n\n\n\n\n\n
        Task<\/strong><\/th>\nResponsible person or team<\/strong><\/th>\n<\/tr>\n<\/thead>\n
        Select the fixing method<\/td>\nEngineering team, based on site conditions<\/td>\n<\/tr>\n
        Confirm that the method can be implemented at the actual location<\/td>\nInstallation team<\/td>\n<\/tr>\n
        Confirm that available downtime accommodates the mandatory waiting periods<\/td>\nOperations supervisor<\/td>\n<\/tr>\n
        Carry out post-installation inspection<\/td>\nInstallation team, immediately after completion<\/td>\n<\/tr>\n
        Evaluate corrective action when hollow-sounding areas are identified<\/td>\nEngineering team<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        A solution may be appropriate from a material perspective but still incomplete if the fixing method cannot be implemented under the actual accessibility conditions.<\/p>\n

        Installation feasibility therefore needs to be confirmed before the solution is finalized.<\/p>\n

        13. Scope of application and references<\/span><\/h2>\n

        Most numerical thresholds in this article are taken from manufacturer installation guidelines for lining materials, including:<\/p>\n

          \n
        • mixing ratio<\/li>\n
        • adhesive pot life<\/li>\n
        • moisture-sealing time<\/li>\n
        • anchor-mesh spacing<\/li>\n
        • anchor dimensions and spacing<\/li>\n<\/ul>\n

          Three parameter groups have intentionally not been assigned fixed values:<\/p>\n

            \n
          • mesh spacing and spraying productivity for each grade<\/li>\n
          • tightening torque by bolt size<\/li>\n
          • tack-weld length and cooling time between welds<\/li>\n<\/ul>\n

            These parameters must be checked against the exact material and applicable instructions rather than filled in using estimates.<\/p>\n

            Three additional points should be noted when applying this article.<\/p>\n

            First<\/strong>, numerical thresholds vary by material. During installation, the documentation for the actual product being used must be consulted.<\/p>\n

            Second<\/strong>, post-installation inspections can identify certain attachment deviations at the time of inspection but do not determine the final service life of the lining.<\/p>\n

            Third<\/strong>, this article explains how to select a fixing mechanism and control installation. It does not determine which material group is the most suitable for a specific location.<\/p>\n

            The peel mechanism at tile corners is used to explain the loading state of bonded joints. Acceptable signs, corrective-action signs, work organization and post-installation inspection practices are based on Gia Anh’s field installation experience.<\/p>\n

            <\/p>\n","protected":false},"featured_media":8597,"parent":9452,"menu_order":3,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false},"danh-muc-kien-thuc":[277],"class_list":["post-9458","kien-thuc","type-kien-thuc","status-publish","has-post-thumbnail","hentry","danh-muc-kien-thuc-machining-fabrication-and-installation"],"acf":[],"_links":{"self":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/kien-thuc\/9458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/kien-thuc"}],"about":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/types\/kien-thuc"}],"up":[{"embeddable":true,"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/kien-thuc\/9452"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/media\/8597"}],"wp:attachment":[{"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/media?parent=9458"}],"wp:term":[{"taxonomy":"danh-muc-kien-thuc","embeddable":true,"href":"https:\/\/giaanh.vn\/en\/wp-json\/wp\/v2\/danh-muc-kien-thuc?post=9458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}