CN101289888A - Composite thermal insulating block - Google Patents

Abstract

A composite heat-preservation building block consists of a three-row hole hollow building block and a heat-preservation plate arranged inside the cavity of the building block, wherein the hollow building block adopts more than 80 percent of industrial and agricultural wastes; the heat-preservation plate adopts a regeneration material of corresponding heat transfer coefficient; the building block does not have a feedthrough wall rib in a heat transfer direction and is provided in advance with cracks along the two surfaces of the building; a conduit tube groove is arranged in advance along the row holes in the building block (or shear-resistant reinforcing steel bars are placed in the row holes); a heat-preservation plate between building block layers is arranged on the groove; the heat-preservation plate is higher than the upper surface of the building block (the protruding part is corresponding to the thickness of a placing ash port); and both ends of the row heat-preservation plate in the building block ensure that the end faces of adjacent heat-preservation plates are abutted against each other during building block placing. Moreover, the comprehensive heat transfer coefficient of building block, placing, finishing and the inner and outer decoration of a wall surface is not higher than a limit value.

Description

Composite heat insulation block

Technical field:

The present invention relates to building energy conservation, relate in particular to a kind of composite heat insulation block.

Background technology:

The important step of building energy conservation is a wall thermal insulating, materials for wall mainly uses and adds vapour building block, building-block etc. at present, because the thermal transmittance of the existing conventional thickness building block in various places does not meet new energy-conservation requirement, generally at the plug-in EPS warming plate of blockwork, though this way has satisfied the insulation requirement, but because body of wall and outermost layer cement coating two rigidity objects only rely on steel wire limited in the EPS plate or adhesive adhesion, in case outer cement coating of steel wire or adhesive failure and exterior wall finish will ruin in a single day, cause the huge social public hazards.Though the ZL200620021440.6 patent can address the above problem, still have following deficiency: the one, block material is a concrete, this thermal transmittance is higher; The 2nd, " building block is provided with one group of cap holes, in heat insulating material is housed ".The enclosure portion of this hole (bottom) forms a heat bridge again, has strengthened the thermal transmittance of building block, above problems affect the heat insulation effect of building block; The 3rd, " placing high-efficiency insulated plate in the open hole in building block both sides ", this technology allows you deliberately cause the damage of ledge warming plate in handling process as implementing at blockyard, will strengthen the difficulty of execution control again as placing at the construction field (site); The 4th, the building block both sides are the plane, and the adhesion stress and the shearing resistance of this structure are relatively poor.

Summary of the invention:

The objective of the invention is with specific region building enclosure wall thermal transmittance limit value is foundation, calculate with test adjustment through theory and determine the heat bridge arrangement of building-block and the sectional area of relevant heat bridge, and each correlative factor such as material of building-block and warming plate.Definite composite heat insulation block links such as (contain building, wipe one's face) exterior trims must satisfy this zone building enclosure wall thermal transmittance limit value.

Application example:

Jinan Area heating phase average temperature is-0.1 ℃, heat transfer coefficient of outer wall limit value K[W/m ²K]] K=0.603 when S≤0.35, K=0.50 when 0.35＜S≤0.40.Press the general composite heat insulation block of highest standard K=0.5 design.Building block size 390 * 240 * 190, three rounds, hollow rate 〉=40%.Unit weight 700kg/m ³, compressive strength 3.5MPa, the use ordinary mortar is built by laying bricks or stones and is wiped one's face exterior trim ceramic tile dignity; Block material calcium carbide mud 20%, flyash 30%, slag 35%, cement 10%, gangue 32%, discarded plant fiber 5%, exciting agent 3%.Warming plate adopts regenerated polyphenylene foaming plate, adopts the pressure type that shakes mechanical-moulded, stream curing 24 hours.Testing result K=0.48 (, meeting up-to-date building energy conservation requirement) by this design building block and enclosure wall thermal transmittance less than 0.5 limit value.

Claims (1)

1. A kind of composite heat insulation block is characterized in that:

   1. composite heat insulation block is by three round building-blocks with form by the warming plate of putting in its cavity.

   2. building-block uses 80% above agriculture and industry waste.

   3. warming plate can use the regrown material of corresponding thermal transmittance.

   4. building block does not have straight-through wall rib along the heat transfer direction.

   5. be reserved with the splitting trace along building block two surfaces.

   6. reserve spool groove (or being used to place shear reinforcement) along round in the building block, on the groove by putting warming plate between building block layer.

   7. the interlayer warming plate is higher than plane in the building block (the raised area is by building ash mouthful thickness by laying bricks or stones).

   8. adjacent warming plate end face was by real when concrete block masonry was satisfied at row's warming plate two ends in the building block.

   9. building block, build by laying bricks or stones, wipe one's face, the complex heat transfer coefficient of metope exterior trim is not higher than limit value.