GB/T 16308-2026 Ferrocement slab English, Anglais, Englisch, Inglés, えいご
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ICS 13.220.10
CCS H 57
National Standard of the People's Republic of China
GB/T 16308-2026
Replaces GB/T 16308-2008
Ferrocement slab
钢丝网水泥板
Issue date: 2026-01-28 Implementation date: 2027-02-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification, specification and marking
5 General requirements
6 Technical requirements
7 Test methods
8 Inspection
Marking, packing, transportation and storage
10 Certificate of quality
Ferrocement Slab
1 Scope
This document specifies the classification, specification and marking, general requirements, technical requirements, test methods, inspection rules, marking, packing, transportation and storage, as well as certificate of quality for ferrocement slabs.This document applies to the production, manufacture and inspection of ferrocement slabs for industrial and civil buildings.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 175 Common Portland cement
GB 1499.1 Steel for reinforcement of concrete — Part 1: Hot-rolled smooth steel bars
GB 1499.2 Steel for reinforcement of concrete — Part 2: Hot-rolled ribbed steel bars
GB/T 1596 Fly ash used for cement, mortar and concrete
GB/T 7897 Test methods for performance of mortar used for ferrocement
GB 8076 Concrete admixturesGB 13788 Cold-rolled ribbed steel bars
GB/T 14684 Sand for construction
GB/T 18046 Granulated blast-furnace slag powder used for cement, mortar and concrete
GB/T 21120 Synthetic fiber for cement concrete and mortar
GB/T 23265 Chopped basalt fiber for cement concrete and mortar
GB/T 38143 Alkali-resistant glass fiber for cement concrete and mortar
GB/T 39147 Steel fiber for concrete
GB/T 50010 Standard for design of concrete structures
GB 50204 Code for acceptance of construction quality of concrete structure engineering
JGJ 63 Standard for water for concrete
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
ferrocement slabA slab made of cement as the main cementitious material, natural sand or manufactured sand as aggregate, and steel bars and steel wire mesh as the main reinforcing materials.
4 Classification, specification and marking
4.1 Classification
4.1.1 Ferrocement slabs are classified into ferrocement roof slabs (code: GSWB) and ferrocement floor slabs (code: GSLB) according to their applications.
4.1.2 Ferrocement roof slabs are classified into Grade Ⅰ, Ⅱ, Ⅲ and Ⅳ according to variable loads and permanent loads, as shown in Table 1.
4.1.3 Ferrocement floor slabs are classified into Grade Ⅰ, Ⅱ, Ⅲ and Ⅳ according to variable loads, as shown in Table 2.
4.2 Specification
4.2.1 The schematic diagram of ferrocement slab is shown in Figure 1.
4.2.2 The dimensions of ferrocement roof slabs are shown in Table 3, and the dimensions of ferrocement floor slabs are shown in Table 4.
4.3 Marking
Ferrocement slab products shall be marked in the sequence of code, nominal dimension, height, grade and document number.
Example 1: Grade Ⅱ ferrocement roof slab with nominal dimension 3000mm×3000mm and height 180mm shall be marked as:GSWB 3000×3000×180 Ⅱ GB/T 16308
Example 2: Grade Ⅱ ferrocement floor slab with nominal dimension 3300mm×1200mm and height 250mm shall be marked as:GSLB 3300×1200×250 Ⅱ GB/T 16308
5 General requirements
5.1 Raw materials
5.1.1 Cement
The properties of cement shall conform to the provisions of GB 175. Ordinary Portland cement and slag Portland cement are preferred.
5.1.2 Sand
The properties of sand shall conform to the provisions of GB/T 14684. Natural sand or manufactured sand with fineness modulus of 2.3~3.5 is preferred, the maximum particle size shall not exceed 4mm, the mud content (mass fraction) shall be less than 1%, and the lump content (mass fraction) shall be less than 0.5%.
5.1.3 Mixing water
It shall conform to the provisions of JGJ 63.
5.1.4 Admixtures
It shall conform to the provisions of GB 8076.
5.1.5 Steel bars, steel wires and steel wire mesh
5.1.5.1 The properties of rib steel bars for ferrocement slabs shall conform to the provisions of GB 1499.1. HRB400 ribbed steel bars are preferred, and their properties shall conform to the provisions of GB 1499.2. HPB300 steel bars are preferred for structural bars.
5.1.5.2 Cold-rolled ribbed steel bars shall conform to the provisions of GB 13788.
5.1.5.3 Cold-drawn low-carbon steel wire woven mesh or welded mesh with diameter of 0.9mm~1.0mm and mesh size of 10mm×10mm is preferred for steel wire mesh. Steel wire mesh of other specifications can also be used, but the diameter shall not exceed 2mm, the mesh size shall not exceed 50mm×50mm, and the tensile strength of steel wire shall not be less than 450MPa.
5.1.6 Fibers
Steel fibers shall conform to the provisions of GB/T 39147, synthetic fibers shall conform to the provisions of GB/T 21120, basalt fibers shall conform to the provisions of GB/T 23265, alkali-resistant glass fibers shall conform to the provisions of GB/T 38143, or other fibers proved to be applicable may be used.
5.1.7 Admixtures
Fly ash shall conform to the provisions of GB/T 1596, slag powder shall conform to the provisions of GB/T 18046, or other admixtures proved to be applicable may be used.
5.2 Structure
5.2.1 The lap length of steel wire mesh shall not be less than 50mm for smooth edges and 80mm for rough edges.
5.2.2 No more than two rows of stressed steel bars shall be arranged in the ribs of ferrocement slabs. The clear distance shall not be less than the diameter of steel bars and not less than 10mm.
5.2.3 The diameter of reinforcement bars on the surface of ferrocement slabs and the diameter of stirrups in ribs shall not be less than 3mm, and the spacing shall not be less than 200mm.
6 Technical requirements
6.1 Compressive strength of mortar
The compressive strength of mortar for ferrocement slabs shall not be less than 40MPa.
6.2 Appearance quality
The appearance quality of ferrocement slabs shall conform to the provisions of Table 5.
6.3 Dimensional deviation
The dimensional deviation of ferrocement slabs shall conform to the provisions of Table 6.
6.4 Mechanical properties
6.4.1 Bearing capacity of ferrocement slab
6.4.1.1 When inspection is required in accordance with the code for design of concrete structures, it shall meet the requirements of Formula (1).6.4.1.2 When bearing capacity inspection is carried out according to the actual reinforcement of ferrocement slab, it shall meet the requirements of Formula (2).
6.4.2 Deflection of ferrocement slab
The deflection of ferrocement slab shall meet the requirements of Formula (3) and Formula (4).
6.4.3 Crack of ferrocement slab
The crack of ferrocement slab shall meet the requirements of Formula (5).
6.5 Concrete cover thickness
The concrete cover thickness of main bars in ribs of ferrocement slabs shall meet the design requirements and shall not be less than 5mm.
